\begin{table}%t2
 \caption{Transitions of amino acetonitrile observed with the IRAM 30~m telescope toward Sgr~B2(N).
The horizontal lines mark discontinuities in the observed frequency coverage.
 All lines with $S\mu^2$~$<$ 20~D$^2$ are not listed, since they are expected to be much too weak to be detectable with our sensitivity.}\label{t:aan30m}
%\centering
\small
 \begin{tabular}{rlrcrrrl}
 \hline\hline
%&&&&&&& \\[-8pt]
 \multicolumn{1}{c}{$N^a$} & \multicolumn{1}{c}{Transition$^b$} & \multicolumn{1}{c}{Frequency} & \multicolumn{1}{c}{Unc.$^c$} & \multicolumn{1}{c}{$E_{\rm l}$$^d$} & \multicolumn{1}{c}{$S\mu^2$} &  \multicolumn{1}{c}{$\sigma^e$} &  \multicolumn{1}{c}{Comments} \\ 
  & & \multicolumn{1}{c}{\scriptsize (MHz)} & \multicolumn{1}{c}{\scriptsize (kHz)} & \multicolumn{1}{c}{\scriptsize (K)} & \multicolumn{1}{c}{\scriptsize (D$^2$)} &  \multicolumn{1}{c}{\scriptsize (mK)} &  \\ 
 \multicolumn{1}{c}{(1)} & \multicolumn{1}{c}{(2)} & \multicolumn{1}{c}{(3)} & \multicolumn{1}{c}{(4)} & \multicolumn{1}{c}{(5)} & \multicolumn{1}{c}{(6)} & \multicolumn{1}{c}{(7)} & \multicolumn{1}{c}{(8)} \\ 
 \hline
   1 &  9$_{ 0, 9}$--8$_{ 0, 8}$ &   80~947.479 &     7 &   16 &          60 &   33 & \textbf{Detected} \\ 
   2 &  9$_{ 2, 8}$--8$_{ 2, 7}$ &   81~535.184 &     6 &   21 &          57 &   18 & Strong HC$^{13}$CCN, $v=$ 0 \\ 
   3 &  9$_{ 5, 5}$--8$_{ 5, 4}$$^\star$ &   81~700.966 &     6 &   47 &          41 &   13 & \textbf{Group detected}, partial blend with U-line \\ 
   5 &  9$_{ 6, 3}$--8$_{ 6, 2}$$^\star$ &   81~702.498 &     5 &   60 &          33 &   13 & \textbf{Group detected}, partial blend with U-line \\ 
   7 &  9$_{ 4, 6}$--8$_{ 4, 5}$$^\star$ &   81~709.838 &     6 &   35 &          48 &   13 & \textbf{Group detected} \\ 
   9 &  9$_{ 7, 3}$--8$_{ 7, 2}$ &   81~709.848 &     6 &   76 &          24 &   13 & \textbf{Group detected} \\ 
  10 &  9$_{ 4, 5}$--8$_{ 4, 4}$ &   81~710.098 &     6 &   35 &          48 &   13 & \textbf{Group detected} \\ 
  11 &  9$_{ 3, 7}$--8$_{ 3, 6}$ &   81~733.892 &     6 &   27 &          53 &   13 & \textbf{Detected}, blend with CH$_3$OCH$_3$ and HCC$^{13}$CN, $v_6$ = 1 \\ 
  12 &  9$_{ 3, 6}$--8$_{ 3, 5}$ &   81~756.174 &     6 &   27 &          53 &   13 & \textbf{Detected}, blend with U-line \\ 
  13 &  9$_{ 2, 7}$--8$_{ 2, 6}$ &   82~224.644 &     7 &   21 &          57 &   19 & \textbf{Detected}, uncertain baseline \\ 
  14 &  9$_{ 1, 8}$--8$_{ 1, 7}$ &   83~480.894 &     8 &   17 &          59 &   17 & Blend with C$_2$H$_3$CN, $v=$ 0 \\ 
  15 & 10$_{ 1,10}$--9$_{ 1, 9}$ &   88~240.541 &     8 &   20 &          66 &   19 & Strong HNCO, $v=$ 0 and HN$^{13}$CO, $v=$ 0 \\ 
  16 & 10$_{ 0,10}$--9$_{ 0, 9}$ &   89~770.285 &     7 &   19 &          66 &   18 & Blend with U-line \\ 
  17 & 10$_{ 2, 9}$--9$_{ 2, 8}$ &   90~561.332 &     6 &   25 &          64 &   20 & \textbf{Detected}, blend with weak C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
  18 & 10$_{ 6, 4}$--9$_{ 6, 3}$$^\star$ &   90~783.538 &     6 &   64 &          43 &   14 & \textbf{Group detected}, partial blend with CH$_2$(OH)CHO and U-line \\ 
  20 & 10$_{ 5, 6}$--9$_{ 5, 5}$$^\star$ &   90~784.281 &     6 &   50 &          50 &   14 & \textbf{Group detected}, partial blend with CH$_2$(OH)CHO and U-line \\ 
  22 & 10$_{ 7, 3}$--9$_{ 7, 2}$$^\star$ &   90~790.259 &     6 &   80 &          34 &   14 & \textbf{Group detected}, blend with U-line \\ 
  24 & 10$_{ 4, 7}$--9$_{ 4, 6}$ &   90~798.685 &     6 &   39 &          56 &   14 & \textbf{Group detected}, blend with U-line \\ 
  25 & 10$_{ 4, 6}$--9$_{ 4, 5}$ &   90~799.249 &     6 &   39 &          56 &   14 & \textbf{Group detected}, blend with U-line \\ 
  26 & 10$_{ 8, 2}$--9$_{ 8, 1}$$^\star$ &   90~801.896 &     7 &   98 &          24 &   14 & Blend with U-line and HC$^{13}$CCN, $v_7$ = 1 \\ 
  28 & 10$_{ 3, 8}$--9$_{ 3, 7}$ &   90~829.945 &     6 &   31 &          60 &   14 & \textbf{Detected}, blend with U-line also in M? \\ 
  29 & 10$_{ 3, 7}$--9$_{ 3, 6}$ &   90~868.038 &     6 &   31 &          60 &   14 & \textbf{Detected}, partial blend with U-line \\ 
  30 & 10$_{ 2, 8}$--9$_{ 2, 7}$ &   91~496.108 &     8 &   25 &          64 &   24 & \textbf{Detected}, partial blend with CH$_3$CN, $v_4$ = 1 and U-line \\ 
  31 & 10$_{ 1, 9}$--9$_{ 1, 8}$ &   92~700.172 &     8 &   21 &          66 &   28 & Blend with U-line and CH$_3$OCH$_3$ \\ 
  32 & 11$_{ 1,11}$--10$_{ 1,10}$ &   97~015.224 &     8 &   25 &          72 &   21 & \textbf{Detected}, partial blend with C$_2$H$_5$OH and CH$_3$OCHO \\ 
  33 & 11$_{ 0,11}$--10$_{ 0,10}$ &   98~548.363 &     8 &   24 &          73 &   18 & Blend with C$_2$H$_5$CN, $v=$ 0 \\ 
  34 & 11$_{ 2,10}$--10$_{ 2, 9}$ &   99~577.063 &     7 &   29 &          71 &   19 & Blend with CH$_3$OCHO, $v_{{\rm t}}$ = 1 \\ 
  35 & 11$_{ 6, 6}$--10$_{ 6, 5}$$^\star$ &   99~865.516 &     6 &   68 &          51 &   14 & Strong blend with C$_2$H$_5$OH, CCS \\ 
  37 & 11$_{ 5, 7}$--10$_{ 5, 6}$$^\star$ &   99~869.306 &     6 &   55 &          58 &   14 & Strong CH$_3$OCHO, $v_{{\rm t}}$ = 1 \\ 
  39 & 11$_{ 7, 4}$--10$_{ 7, 3}$$^\star$ &   99~871.151 &     6 &   84 &          43 &   14 & Strong CH$_3$OCHO, $v_{{\rm t}}$ = 1 \\ 
  41 & 11$_{ 8, 3}$--10$_{ 8, 2}$$^\star$ &   99~882.826 &     7 &  103 &          34 &   14 & Strong blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
  43 & 11$_{ 4, 8}$--10$_{ 4, 7}$ &   99~890.599 &     6 &   44 &          63 &   14 & Strong blend with HC$^{13}$CCN, $v_7$ = 1 and HC$^{13}$CCN, $v_6$ = 1  \\ 
  44 & 11$_{ 4, 7}$--10$_{ 4, 6}$ &   99~891.725 &     6 &   44 &          63 &   14 & Strong blend with HC$^{13}$CCN, $v_6$ = 1 and NH$_2$CN \\ 
  45 & 11$_{ 9, 2}$--10$_{ 9, 1}$$^\star$ &   99~898.969 &     8 &  124 &          24 &   14 & Strong HCC$^{13}$CN, $v_6$ = 1 \\ 
  47 & 11$_{ 3, 9}$--10$_{ 3, 8}$ &   99~928.886 &     6 &   35 &          68 &   14 & \textbf{Detected}, partial blend with NH$_2$CN and U-line \\ 
  48 & 11$_{ 3, 8}$--10$_{ 3, 7}$ &   99~990.567 &     7 &   35 &          68 &   14 & \textbf{Detected} \\ 
  49 & 11$_{ 2, 9}$--10$_{ 2, 8}$ &  100~800.876 &     8 &   29 &          71 &   20 & \textbf{Detected}, partial blend with CH$_3$CH$_3$CO, $v=$ 0 and U-line \\ 
  50 & 11$_{ 1,10}$--10$_{ 1, 9}$ &  101~899.795 &     8 &   26 &          72 &   34 & \textbf{Detected}, uncertain baseline \\ 
  51 & 12$_{ 1,12}$--11$_{ 1,11}$ &  105~777.991 &     8 &   29 &          79 &   43 & \textbf{Detected}, blend with c-C$_2$H$_4$O and C$_2$H$_5$CN, $v=$ 0 \\ 
  52 & 12$_{ 0,12}$--11$_{ 0,11}$ &  107~283.142 &     8 &   29 &          80 &   24 & \textbf{Detected}, blend with C$_2$H$_5$OH and U-line \\ 
  53 & 12$_{ 2,11}$--11$_{ 2,10}$ &  108~581.408 &     7 &   34 &          77 &   20 & \textbf{Detected}, weak blend with C$_2$H$_5$OH \\ 
  54 & 12$_{ 6, 7}$--11$_{ 6, 6}$$^\star$ &  108~948.523 &     6 &   73 &          60 &   29 & Blend with C$_2$H$_5$CN, $v=$ 0 and C$_2$H$_5$OH \\ 
  56 & 12$_{ 7, 5}$--11$_{ 7, 4}$$^\star$ &  108~952.574 &     6 &   89 &          53 &   29 & Blend with C$_2$H$_5$OH \\ 
  58 & 12$_{ 5, 8}$--11$_{ 5, 7}$$^\star$ &  108~956.206 &     6 &   60 &          66 &   29 & \textbf{Group detected}, blend with C$_2$H$_5$OH \\ 
  60 & 12$_{ 8, 4}$--11$_{ 8, 3}$$^\star$ &  108~963.964 &     7 &  108 &          44 &   29 & Strong blend with HC$^{13}$CCN, $v_7$ = 1 \\ 
  62 & 12$_{ 9, 3}$--11$_{ 9, 2}$$^\star$ &  108~980.660 &     8 &  128 &          35 &   29 & Strong blend with HCC$^{13}$CN, $v_6$ = 1 \\ 
  64 & 12$_{ 4, 9}$--11$_{ 4, 8}$ &  108~985.821 &     6 &   48 &          71 &   29 & Blend with HCC$^{13}$CN, $v_7$ = 1 \\ 
  65 & 12$_{ 4, 8}$--11$_{ 4, 7}$ &  108~987.928 &     6 &   48 &          71 &   29 & Blend with HCC$^{13}$CN, $v_7$ = 1 \\ 
  66 & 12$_{10, 2}$--11$_{10, 1}$$^\star$ &  109~001.603 &    10 &  152 &          24 &   29 & Weak \\ 
  68 & 12$_{ 3,10}$--11$_{ 3, 9}$ &  109~030.225 &     6 &   40 &          75 &   29 & \textbf{Detected}, partial blend with HC$_3$N, $v_4$ = 1, C$_2$H$_5$OH, and U-line \\ 
  69 & 12$_{ 3, 9}$--11$_{ 3, 8}$ &  109~125.734 &     7 &   40 &          75 &   29 & Strong HC$^{13}$CCN, $v_7$ = 1 \\ 
 \hline
  70 & 12$_{ 2,10}$--11$_{ 2, 9}$ &  110~136.314 &     8 &   34 &          77 &   24 & Blend with $^{13}$CH$_3$OH, $v=$ 0 \\ 
  71 & 12$_{ 1,11}$--11$_{ 1,10}$ &  111~076.901 &     8 &   31 &          79 &   25 & \textbf{Detected}, slightly shifted? \\ 
  72 & 13$_{ 1,13}$--12$_{ 1,12}$ &  114~528.654 &     8 &   34 &          86 &   37 & \textbf{Detected}, partial blend with U-line \\ 
  73 & 13$_{ 0,13}$--12$_{ 0,12}$ &  115~977.853 &    50 &   34 &          86 &   79 & Blend with CH$_3$$^{13}$CH$_2$CN, $v=$ 0, CH$_3$CH$_3$CO, and C$_2$H$_5$CN, $v=$ 0 \\ 
\hline
%&&&&&&& \\[-8pt]
  74 & 15$_{ 7, 9}$--14$_{ 7, 8}$$^\star$ &  136~200.478 &     6 &  106 &          78 &   28 & Strong HC$^{13}$CCN, $v_7$ = 1 \\ 
  76 & 15$_{ 6,10}$--14$_{ 6, 9}$$^\star$ &  136~204.641 &     5 &   90 &          84 &   28 & Strong HC$^{13}$CCN, $v_7$ = 1 \\ 
  78 & 15$_{ 8, 7}$--14$_{ 8, 6}$$^\star$ &  136~208.805 &     7 &  125 &          71 &   28 & Strong HC$^{13}$CCN, $v_7$ = 1 and HC$^{13}$CCN, $v_6$ = 1 \\ 
  80 & 15$_{ 9, 6}$--14$_{ 9, 5}$$^\star$ &  136~225.653 &     8 &  145 &          64 &   28 & Strong HCC$^{13}$CN, $v_6$ = 1 and HCC$^{13}$CN, $v_7$ = 1 \\ 
  82 & 15$_{ 5,11}$--14$_{ 5,10}$ &  136~229.823 &     5 &   77 &          89 &   28 & Blend with HCC$^{13}$CN, $v_7$ = 1 \\ 
  83 & 15$_{ 5,10}$--14$_{ 5, 9}$ &  136~230.008 &     5 &   77 &          89 &   28 & Blend with HCC$^{13}$CN, $v_7$ = 1 \\ 
  84 & 15$_{10, 5}$--14$_{10, 4}$$^\star$ &  136~248.969 &    10 &  169 &          55 &   28 & \textbf{Group detected}, blend with U-line \\ 
  86 & 15$_{11, 4}$--14$_{11, 3}$$^\star$ &  136~277.600 &    13 &  195 &          46 &   28 & Strong HC$_3$N, $v_4$ = 1 and CH$_3$OCHO \\ 
  88 & 15$_{ 4,12}$--14$_{ 4,11}$ &  136~293.271 &     6 &   65 &          93 &   28 & Strong CH$_3$$^{13}$CH$_2$CN \\ 
  89 & 15$_{ 4,11}$--14$_{ 4,10}$ &  136~303.599 &     6 &   65 &          93 &   28 & \textbf{Detected}, blend with a(CH$_2$OH)$_2$ and CH$_3$C$_3$N \\ 
  90 & 15$_{12, 3}$--14$_{12, 2}$$^\star$ &  136~310.849 &    16 &  223 &          36 &   28 & Weak, blend with CH$_3$C$_3$N \\ 
  92 & 15$_{ 3,13}$--14$_{ 3,12}$ &  136~341.155 &     6 &   57 &          96 &   28 & \textbf{Detected}, partial blend with U-line also in M \\ 
  93 & 15$_{13, 2}$--14$_{13, 1}$$^\star$ &  136~348.271 &    21 &  253 &          25 &   28 & Weak, blend with U-line \\ 
\hline
%&&&&&&& \\[-8pt]
  95 & 16$_{ 7, 9}$--15$_{ 7, 8}$$^\star$ &  145~284.487 &    30 &  113 &          86 &   25 & Strong HC$^{13}$CCN, $v_7$ = 1 \\ 
  97 & 16$_{ 8, 8}$--15$_{ 8, 7}$$^\star$ &  145~290.958 &    30 &  131 &          80 &   25 & Blend with HC$^{13}$CCN, $v_6$ = 1 \\ 
  99 & 16$_{ 6,11}$--15$_{ 6,10}$$^\star$ &  145~292.688 &    30 &   97 &          91 &   25 & Blend with HC$^{13}$CCN, $v_6$ = 1 \\ 
 101 & 16$_{ 9, 7}$--15$_{ 9, 6}$$^\star$ &  145~307.254 &    30 &  152 &          73 &   25 & Strong C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1, HCC$^{13}$CN, $v_7$ = 1, C$_2$H$_3$CN, $v_{15}$ = 1 \\ 
 103 & 16$_{ 5,12}$--15$_{ 5,11}$ &  145~325.871 &    30 &   83 &          96 &   25 & \textbf{Group detected}, uncertain baseline, partial blend with  \\ 
 & & & & & & & C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 104 & 16$_{ 5,11}$--15$_{ 5,10}$ &  145~326.209 &    30 &   83 &          96 &   25 & \textbf{Group detected}, uncertain baseline, partial blend with  \\ 
 & & & & & & & C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 105 & 16$_{10, 6}$--15$_{10, 5}$$^\star$ &  145~330.985 &    40 &  175 &          65 &   25 & \textbf{Group detected}, uncertain baseline \\ 
 107 & 16$_{11, 5}$--15$_{11, 4}$$^\star$ &  145~360.684 &    30 &  201 &          56 &   25 & Strong HC$_3$N, $v_4$ = 1 \\ 
 109 & 16$_{12, 4}$--15$_{12, 3}$$^\star$ &  145~395.485 &    60 &  229 &          46 &   25 & Blend with C$_3$H$_7$CN \\ 
 111 & 16$_{ 4,13}$--15$_{ 4,12}$ &  145~403.421 &    30 &   72 &         100 &   25 & Blend with U-line or wing of C$_2$H$_5$CN, $v=$ 0 \\ 
 112 & 16$_{ 4,12}$--15$_{ 4,11}$ &  145~419.704 &    30 &   72 &         100 &   25 & Strong C$_2$H$_5$CN, $v=$ 0 \\ 
 113 & 16$_{13, 3}$--15$_{13, 2}$$^\star$ &  145~434.928 &    60 &  260 &          36 &   25 & Weak, blend with U-line \\ 
 115 & 16$_{ 3,14}$--15$_{ 3,13}$ &  145~443.850 &    30 &   63 &         103 &   25 & \textbf{Detected}, blend with C$_2$H$_5$CN, $v=$ 0 and U-line \\ 
 116 & 16$_{14, 2}$--15$_{14, 1}$$^\star$ &  145~478.462 &    60 &  293 &          25 &   25 & Weak, strong O$^{13}$CS \\ 
\hline
%&&&&&&& \\[-8pt]
 118 & 16$_{ 1,15}$--15$_{ 1,14}$ &  147~495.789 &     6 &   55 &         106 &   31 & \textbf{Detected}, partial blend with H$_3$C$^{13}$CN, $v_8$ = 1 \\ 
 119 & 16$_{ 2,14}$--15$_{ 2,13}$ &  147~675.839 &    30 &   58 &         105 &   31 & Blend with H$_3$C$^{13}$CN, $v_8$ = 1, U-line, and CH$_3$OCHO \\ 
\hline
%&&&&&&& \\[-8pt]
 120 & 17$_{ 7,10}$--16$_{ 7, 9}$$^\star$ &  154~369.232 &    40 &  120 &          94 &  112 & Strong HC$^{13}$CCN, $v_7$ = 1 and HC$^{13}$CCN, $v_6$ = 1 \\ 
 122 & 17$_{ 8, 9}$--16$_{ 8, 8}$$^\star$ &  154~373.384 &    40 &  138 &          88 &  112 & Strong HC$^{13}$CCN, $v_6$ = 1 \\ 
 124 & 17$_{ 6,12}$--16$_{ 6,11}$$^\star$ &  154~382.222 &    40 &  104 &          99 &  112 & Strong HCC$^{13}$CN, $v_6$ = 1 and HCC$^{13}$CN, $v_7$ = 1 \\ 
 126 & 17$_{ 9, 8}$--16$_{ 9, 7}$$^\star$ &  154~388.904 &    40 &  159 &          81 &  112 & Strong HCC$^{13}$CN, $v_7$ = 1 \\ 
 128 & 17$_{10, 7}$--16$_{10, 6}$$^\star$ &  154~412.758 &    50 &  182 &          74 &  112 & Strong HNCO, $v=$ 0 \\ 
 130 & 17$_{ 5,13}$--16$_{ 5,12}$ &  154~424.604 &    40 &   90 &         103 &  112 & Strong CH$_3$OH, $v=$ 0 \\ 
 131 & 17$_{ 5,12}$--16$_{ 5,11}$ &  154~425.216 &    40 &   90 &         103 &  112 & Strong CH$_3$OH, $v=$ 0 \\ 
 132 & 17$_{11, 6}$--16$_{11, 5}$$^\star$ &  154~443.330 &    60 &  208 &          66 &  112 & Strong HC$_3$N, $v_4$ = 1 and CH$_3$$^{13}$CH$_2$CN \\ 
 134 & 17$_{12, 5}$--16$_{12, 4}$$^\star$ &  154~479.566 &    15 &  236 &          57 &  112 & Strong C$_2$H$_5$CN, $v=$ 0 \\ 
 136 & 17$_{ 4,14}$--16$_{ 4,13}$ &  154~517.470 &     5 &   79 &         107 &  112 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 137 & 17$_{13, 4}$--16$_{13, 3}$$^\star$ &  154~520.861 &    19 &  267 &          47 &  112 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 139 & 17$_{ 4,13}$--16$_{ 4,12}$ &  154~542.406 &     5 &   79 &         107 &  112 & \textbf{Group detected}, blend with U-line \\ 
 140 & 17$_{ 3,15}$--16$_{ 3,14}$ &  154~544.046 &     5 &   70 &         109 &  112 & \textbf{Group detected}, blend with U-line \\ 
 141 & 17$_{14, 3}$--16$_{14, 2}$$^\star$ &  154~566.773 &    25 &  300 &          36 &  112 & Weak, strong U-line \\ 
 143 & 17$_{15, 2}$--16$_{15, 1}$$^\star$ &  154~617.004 &    33 &  335 &          25 &  112 & Weak, strong U-line and C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
\hline
%&&&&&&& \\[-8pt]
 145 & 18$_{ 7,12}$--17$_{ 7,11}$$^\star$ &  163~454.794 &     5 &  127 &         101 &   38 & \textbf{Group detected}, partial blend with HC$^{13}$CCN, $v_6$ = 1  \\ 
 & & & & & & & and HCC$^{13}$CN, $v_6$ = 1 \\ 
 147 & 18$_{ 8,10}$--17$_{ 8, 9}$$^\star$ &  163~456.136 &     6 &  146 &          96 &   38 & \textbf{Group detected}, partial blend with HC$^{13}$CCN, $v_6$ = 1  \\ 
 & & & & & & & and HCC$^{13}$CN, $v_6$ = 1 \\ 
 149 & 18$_{ 9, 9}$--17$_{ 9, 8}$$^\star$ &  163~470.472 &     8 &  166 &          90 &   38 & \textbf{Group detected}, partial blend with HCC$^{13}$CN,$v_7$ = 1 \\ 
 151 & 18$_{ 6,13}$--17$_{ 6,12}$$^\star$ &  163~473.305 &     5 &  111 &         106 &   38 & \textbf{Group detected}, partial blend with HCC$^{13}$CN,$v_7$ = 1 \\ 
 153 & 18$_{10, 8}$--17$_{10, 7}$$^\star$ &  163~494.265 &     9 &  190 &          83 &   38 & Strong CH$_3$$^{13}$CH$_2$CN \\ 
 \hline
 155 & 18$_{11, 7}$--17$_{11, 6}$$^\star$ &  163~525.533 &    11 &  216 &          75 &   38 & \textbf{Group detected}, blend with HC$_3$N, $v_4$ = 1 \\ 
 157 & 18$_{ 5,14}$--17$_{ 5,13}$ &  163~526.183 &     4 &   97 &         110 &   38 & \textbf{Group detected}, blend with HC$_3$N, $v_4$ = 1 \\ 
 158 & 18$_{ 5,13}$--17$_{ 5,12}$ &  163~527.171 &     4 &   97 &         110 &   38 & \textbf{Group detected}, blend with HC$_3$N, $v_4$ = 1 \\ 
 159 & 18$_{12, 6}$--17$_{12, 5}$$^\star$ &  163~563.084 &    14 &  244 &          66 &   38 & Blend with C$_2$H$_3$CN, $v_{15}$ = 2 and SO$_2$, $v=$ 0 \\ 
 161 & 18$_{13, 5}$--17$_{13, 4}$$^\star$ &  163~606.161 &    18 &  274 &          57 &   38 & Strong SO$_2$, $v=$ 0 \\ 
 163 & 18$_{ 4,15}$--17$_{ 4,14}$ &  163~635.326 &     5 &   86 &         114 &   38 & \textbf{Detected}, partial blend with C$_3$H$_7$CN \\ 
 164 & 18$_{ 3,16}$--17$_{ 3,15}$ &  163~640.468 &     5 &   78 &         116 &   38 & \textbf{Detected}, partial blend with C$_3$H$_7$CN \\ 
 165 & 18$_{14, 4}$--17$_{14, 3}$$^\star$ &  163~654.261 &    24 &  307 &          47 &   38 & Weak, blend with H$^{13}$CONH$_2$, $v=$ 0 \\ 
 167 & 18$_{ 4,14}$--17$_{ 4,13}$ &  163~672.524 &     5 &   86 &         114 &   38 & Strong C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 168 & 18$_{15, 3}$--17$_{15, 2}$$^\star$ &  163~707.031 &    32 &  343 &          37 &   38 & Weak, blend with CH$_2$(OH)CHO \\ 
\hline
%&&&&&&& \\[-8pt]
 170 & 18$_{ 2,16}$--17$_{ 2,15}$ &  166~463.884 &    30 &   72 &         118 &   66 & Blend with $^{13}$CH$_2$CHCN \\ 
\hline
%&&&&&&& \\[-8pt]
 171 & 19$_{ 8,12}$--18$_{ 8,11}$$^\star$ &  172~539.195 &    40 &  153 &         104 &   44 & Strong HCC$^{13}$CN, $v_6$ = 1 \\ 
 173 & 19$_{ 7,13}$--18$_{ 7,12}$$^\star$ &  172~541.207 &    40 &  135 &         109 &   44 & Strong HCC$^{13}$CN, $v_6$ = 1 \\ 
 175 & 19$_{ 9,10}$--18$_{ 9, 9}$$^\star$ &  172~552.010 &    40 &  174 &          98 &   44 & Strong HCC$^{13}$CN, $v_7$ = 1 \\ 
 177 & 19$_{ 6,14}$--18$_{ 6,13}$$^\star$ &  172~566.092 &    50 &  119 &         114 &   44 & \textbf{Group detected}, partial blend with U-line and HCC$^{13}$CN, $v_7$ = 1 \\ 
 179 & 19$_{10, 9}$--18$_{10, 8}$$^\star$ &  172~575.485 &    50 &  198 &          91 &   44 & Strong U-line \\ 
 181 & 19$_{11, 8}$--18$_{11, 7}$$^\star$ &  172~607.260 &    60 &  223 &          84 &   44 & Strong HC$_3$N, $v_4$ = 1 \\ 
 183 & 19$_{ 5,15}$--18$_{ 5,14}$ &  172~630.750 &    30 &  105 &         117 &   44 & Strong U-line and t-HCOOH \\ 
 184 & 19$_{ 5,14}$--18$_{ 5,13}$ &  172~632.382 &    30 &  105 &         117 &   44 & Strong U-line and t-HCOOH \\ 
 185 & 19$_{12, 7}$--18$_{12, 6}$$^\star$ &  172~645.994 &    13 &  252 &          76 &   44 & Blend with t-HCOOH, H$^{13}$CN, and U-line \\ 
 187 & 19$_{13, 6}$--18$_{13, 5}$$^\star$ &  172~690.745 &    17 &  282 &          67 &   44 & Strong H$^{13}$CN and CH$_3$OCHO \\ 
 189 & 19$_{ 3,17}$--18$_{ 3,16}$ &  172~731.699 &    30 &   86 &         123 &   44 & Blend with U-line and C$_2$H$_3$CN, $v=$ 0 \\ 
 190 & 19$_{14, 5}$--18$_{14, 4}$$^\star$ &  172~740.945 &    23 &  315 &          58 &   44 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 192 & 19$_{ 4,16}$--18$_{ 4,15}$ &  172~756.821 &    30 &   94 &         121 &   44 & Baseline problem? \\ 
 193 & 19$_{15, 4}$--18$_{15, 3}$$^\star$ &  172~796.183 &    30 &  351 &          48 &   44 & Weak, strong HCC$^{13}$CN, $v_7$ = 1 \\ 
 195 & 19$_{ 4,15}$--18$_{ 4,14}$ &  172~811.041 &    30 &   94 &         121 &   44 & Strong C$_2$H$_5$CN, $v=$ 0 \\ 
 196 & 19$_{16, 3}$--18$_{16, 2}$$^\star$ &  172~856.161 &    40 &  388 &          37 &   44 & Weak, strong HC$_3$N, $v=$ 0 and HC$_3$N, $v_5$ = 1$/$$v_7$ = 3 \\ 
\hline
 198 & 20$_{ 0,20}$--19$_{ 0,19}$ &  176~174.096 &    30 &   81 &         132 &  365 & Noisy, partial blend with HNCO, $v_5$ = 1 and U-line \\ 
\hline
%&&&&&&& \\[-8pt]
 199 & 23$_{ 0,23}$--22$_{ 0,22}$ &  201~875.876 &    10 &  108 &         152 &  138 & Strong $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 200 & 22$_{ 2,20}$--21$_{ 2,19}$ &  203~812.341 &    10 &  107 &         145 &  364 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 201 & 23$_{ 2,22}$--22$_{ 2,21}$ &  206~652.454 &     9 &  115 &         151 &  106 & Blend with C$_2$H$_5$CN, $v=$ 0 \\ 
 202 & 23$_{ 8,16}$--22$_{ 8,15}$$^\star$ &  208~875.040 &     8 &  189 &         134 &  160 & Blend with HCC$^{13}$CN, $v_7$ = 1, CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1, and CH$_3$OCHO \\ 
 204 & 23$_{ 9,14}$--22$_{ 9,13}$$^\star$ &  208~877.860 &     9 &  210 &         129 &  160 & Blend with HCC$^{13}$CN, $v_7$ = 1, CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1, and CH$_3$OCHO \\ 
 206 & 23$_{ 7,17}$--22$_{ 7,16}$$^\star$ &  208~896.163 &     7 &  171 &         139 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 208 & 23$_{10,13}$--22$_{10,12}$$^\star$ &  208~897.241 &    10 &  233 &         124 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 210 & 23$_{11,12}$--22$_{11,11}$$^\star$ &  208~929.064 &    10 &  259 &         118 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 212 & 23$_{ 6,18}$--22$_{ 6,17}$ &  208~955.555 &     6 &  155 &         142 &  160 & Blend with C$_2$H$_3$CN, $v=$ 0 and U-line \\ 
 213 & 23$_{ 6,17}$--22$_{ 6,16}$ &  208~955.797 &     6 &  155 &         142 &  160 & Blend with C$_2$H$_3$CN, $v=$ 0 and U-line \\ 
 214 & 23$_{12,11}$--22$_{12,10}$$^\star$ &  208~970.868 &    11 &  287 &         111 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 216 & 23$_{ 3,21}$--22$_{ 3,20}$ &  209~015.508 &     7 &  121 &         150 &  160 & Strong C$_2$H$_5$CN, $v=$ 0 and C$_2$H$_3$CN, $v=$ 0 \\ 
 217 & 23$_{13,10}$--22$_{13, 9}$$^\star$ &  209~021.101 &    13 &  318 &         104 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 219 & 23$_{14, 9}$--22$_{14, 8}$$^\star$ &  209~078.736 &    16 &  351 &          96 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 221 & 23$_{ 5,19}$--22$_{ 5,18}$ &  209~081.032 &     6 &  141 &         146 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 222 & 23$_{ 5,18}$--22$_{ 5,17}$ &  209~090.124 &     6 &  141 &         146 &  160 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 223 & 23$_{15, 8}$--22$_{15, 7}$$^\star$ &  209~143.066 &    23 &  386 &          88 &  160 & Weak, strong HC$^{13}$CCN, $v_7$ = 1 \\ 
 225 & 23$_{16, 7}$--22$_{16, 6}$$^\star$ &  209~213.584 &    33 &  424 &          79 &   58 & Weak, strong H$_2$CS and C$_2$H$_3$CN, $v_{15}$ = 1 \\ 
 227 & 23$_{ 4,20}$--22$_{ 4,19}$ &  209~272.189 &     6 &  130 &         148 &   58 & \textbf{Detected}, blend CH$_3$CH$_3$CO, $v=$ 0 \\ 
 228 & 23$_{17, 6}$--22$_{17, 5}$$^\star$ &  209~289.914 &    46 &  464 &          69 &   58 & Weak, blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 and C$_2$H$_3$CN, $v_{15}$ = 1 \\ 
 230 & 23$_{18, 5}$--22$_{18, 4}$$^\star$ &  209~371.766 &    64 &  507 &          59 &   58 & Weak, blend with C$_2$H$_5$OH \\ 
 232 & 23$_{19, 4}$--22$_{19, 3}$$^\star$ &  209~458.910 &    86 &  552 &          49 &   58 & Weak, strong C$_2$H$_3$CN, $v_{15}$ = 2 and C$_2$H$_5$CN, $v=$ 0 \\ 
 234 & 23$_{ 4,19}$--22$_{ 4,18}$ &  209~473.790 &     7 &  130 &         148 &   58 & Strong C$_2$H$_3$CN, $v_{15}$ = 2 and CH$_3$OCHO \\ 
 235 & 23$_{20, 3}$--22$_{20, 2}$$^\star$ &  209~551.156 &   114 &  599 &          37 &   58 & Weak, strong C$_2$H$_3$CN, $v_{11}$ = 1 \\ 
 237 & 23$_{ 1,22}$--22$_{ 1,21}$ &  209~629.913 &     9 &  113 &         152 &   45 & \textbf{Detected}, blend with HC$^{13}$CCN, $v_7$ = 2 and HCC$^{13}$CN, $v_7$ = 2 \\ 
 238 & 23$_{21, 2}$--22$_{21, 1}$$^\star$ &  209~648.342 &   146 &  649 &          25 &   45 & Weak, blend with U-line and C$_2$H$_3$CN, $v_{11}$ = 1 \\ 
 240 & 24$_{ 1,24}$--23$_{ 1,23}$ &  210~072.793 &    12 &  118 &         159 &   45 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 and $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 241 & 24$_{ 0,24}$--23$_{ 0,23}$ &  210~448.044 &    12 &  118 &         159 &   64 & Strong CH$_3$OCHO \\ 
 242 & 23$_{ 3,20}$--22$_{ 3,19}$ &  211~099.150 &    12 &  122 &         150 &   33 & Blend with U-lines \\ 
 \hline
 243 & 23$_{ 2,21}$--22$_{ 2,20}$ &  213~074.653 &    70 &  117 &         152 &   48 & Strong SO$_2$, $v=$ 0 \\ 
 244 & 24$_{ 2,23}$--23$_{ 2,22}$ &  215~466.138 &    10 &  124 &         158 &   74 & Strong C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
\hline
 245 & 24$_{ 3,21}$--23$_{ 3,20}$ &  220~537.064 &    14 &  132 &         157 &   98 & Strong CH$_3$CN, $v_8$ = 0 \\ 
\hline
 246 & 25$_{ 1,24}$--24$_{ 1,23}$ &  226~957.428 &    40 &  134 &         165 &   96 & Strong CN absorption \\ 
 247 & 25$_{ 9,16}$--24$_{ 9,15}$$^\star$ &  227~040.487 &    50 &  230 &         145 &   96 & \textbf{Group detected}, partial blend with CN absorption and  \\ 
 & & & & & & & CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1 \\ 
 249 & 25$_{ 8,18}$--24$_{ 8,17}$$^\star$ &  227~045.287 &    50 &  210 &         149 &   96 & \textbf{Group detected}, partial blend with CN absorption and  \\ 
 & & & & & & & CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1 \\ 
 251 & 25$_{10,15}$--24$_{10,14}$$^\star$ &  227~055.944 &    50 &  254 &         139 &   96 & \textbf{Group detected}, partial blend with CN absorption \\ 
 253 & 25$_{ 7,19}$--24$_{ 7,18}$$^\star$ &  227~079.847 &    50 &  191 &         153 &   96 & \textbf{Group detected}, blend with CH$_2$CH$^{13}$CN and CH$_3$OH, $v=$ 0 \\ 
 255 & 25$_{11,14}$--24$_{11,13}$$^\star$ &  227~086.424 &    50 &  280 &         134 &   96 & Blend with CH$_2$CH$^{13}$CN and CH$_3$OH, $v=$ 0 \\ 
 257 & 25$_{ 3,23}$--24$_{ 3,22}$ &  227~088.938 &    40 &  142 &         164 &   96 & Blend with CH$_2$CH$^{13}$CN and CH$_3$OH, $v=$ 0 \\ 
 258 & 25$_{12,13}$--24$_{12,12}$$^\star$ &  227~128.728 &    60 &  308 &         128 &   96 & Blend with C$_2$H$_5$CN, $v=$ 0 and  C$_2$H$_3$CN, $v=$ 0 \\ 
\hline
 260 & 25$_{17, 8}$--24$_{17, 7}$$^\star$ &  227~467.235 &    45 &  485 &          89 &   85 & Weak, blend with CH$_2$(OH)CHO, CH$_2$CH$^{13}$CN and  \\ 
 & & & & & & & t-C$_2$H$_5$OCHO \\ 
 262 & 25$_{ 4,22}$--24$_{ 4,21}$ &  227~539.318 &    40 &  151 &         162 &   85 & Strong HCONH$_2$, $v_{12}$ = 1 and C$_2$H$_5$CN, $v=$ 0 \\ 
 263 & 25$_{18, 7}$--24$_{18, 6}$$^\star$ &  227~555.295 &    63 &  528 &          80 &   85 & Weak, strong CH$_3$OCHO \\ 
 265 & 26$_{ 0,26}$--25$_{ 0,25}$ &  227~601.595 &    16 &  138 &         172 &   85 & Strong HCONH$_2$, $v=$ 0 \\ 
 266 & 25$_{19, 6}$--24$_{19, 5}$$^\star$ &  227~649.239 &    85 &  572 &          70 &   85 & Weak, blend with CH$_3$OCH$_3$ \\ 
 268 & 25$_{20, 5}$--24$_{20, 4}$$^\star$ &  227~748.834 &   113 &  620 &          60 &   85 & Weak, blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 270 & 25$_{21, 4}$--24$_{21, 3}$$^\star$ &  227~853.885 &   147 &  669 &          49 &   85 & Weak, strong HC$^{13}$CCN, $v_7$ = 2 and HCC$^{13}$CN, $v_7$ = 2 \\ 
 272 & 25$_{ 4,21}$--24$_{ 4,20}$ &  227~892.614 &    60 &  151 &         162 &   85 & Strong HCC$^{13}$CN, $v_7$ = 2, C$_2$H$_5$OH, and HC$^{13}$CCN, $v_7$ = 2 \\ 
\hline
 273 & 25$_{ 2,23}$--24$_{ 2,22}$ &  231~485.527 &    50 &  138 &         165 &   40 & \textbf{Detected}, blend with U-line? \\ 
\hline
 274 & 26$_{ 1,25}$--25$_{ 1,24}$ &  235~562.532 &    50 &  145 &         172 &  131 & Strong C$_2$H$_3$CN, $v=$ 0 \\ 
 275 & 27$_{ 1,27}$--26$_{ 1,26}$ &  235~964.814 &    19 &  149 &         179 &  131 & Strong $^{13}$CH$_3$OH, $v=$ 0 \\ 
\hline
%&&&&&&& \\[-8pt]
 276 & 26$_{ 3,24}$--25$_{ 3,23}$ &  236~103.949 &    40 &  153 &         170 &   37 & Blend with HCC$^{13}$CN, $v_7$ = 1 and C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 277 & 26$_{ 9,17}$--25$_{ 9,16}$$^\star$ &  236~121.689 &    50 &  241 &         152 &   37 & Blend with $^{13}$CH$_3$CH$_2$CN \\ 
 279 & 26$_{ 8,19}$--25$_{ 8,18}$$^\star$ &  236~131.044 &    50 &  220 &         156 &   37 & Blend with CH$_2$$^{13}$CHCN \\ 
 281 & 26$_{10,16}$--25$_{10,15}$$^\star$ &  236~134.730 &    50 &  265 &         147 &   37 & Blend with CH$_2$$^{13}$CHCN \\ 
 283 & 26$_{11,15}$--25$_{11,14}$$^\star$ &  236~164.129 &    60 &  291 &         142 &   37 & Strong C$_2$H$_3$CN, $v_{11}$ = 1 and $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 285 & 26$_{ 7,20}$--25$_{ 7,19}$$^\star$ &  236~173.437 &    60 &  202 &         160 &   37 & Blend with C$_2$H$_3$CN, $v_{11}$ = 1, CH$_2$$^{13}$CHCN, and  \\ 
 & & & & & & & $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 287 & 27$_{ 0,27}$--26$_{ 0,26}$ &  236~182.602 &    18 &  149 &         179 &   37 & Blend with CH$_2$$^{13}$CHCN, $^{13}$CH$_3$CH$_2$CN, $v=$ 0, and HC$_3$N, $v_4$ = 1 \\ 
 288 & 26$_{12,14}$--25$_{12,13}$$^\star$ &  236~206.427 &    19 &  319 &         136 &   37 & Strong SO$_2$, $v=$ 0 \\ 
 290 & 26$_{13,13}$--25$_{13,12}$$^\star$ &  236~259.339 &    21 &  349 &         130 &   37 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 and t-C$_2$H$_5$OCHO \\ 
 292 & 26$_{ 6,21}$--25$_{ 6,20}$ &  236~269.491 &    60 &  186 &         163 &   37 & \textbf{Group detected}, partial blend with t-C$_2$H$_5$OCHO and U-line \\ 
 293 & 26$_{ 6,20}$--25$_{ 6,19}$ &  236~270.459 &    60 &  186 &         163 &   37 & \textbf{Group detected}, partial blend with t-C$_2$H$_5$OCHO and U-line \\ 
 294 & 26$_{14,12}$--25$_{14,11}$$^\star$ &  236~321.411 &    23 &  382 &         123 &   37 & Weak, blend with C$_2$H$_5$OH and CH$_3$$^{13}$CH$_2$CN, $v=$ 0 \\ 
 296 & 26$_{15,11}$--25$_{15,10}$$^\star$ &  236~391.638 &    27 &  418 &         115 &   37 & Weak, blend with CH$_2$$^{13}$CHCN \\ 
 298 & 26$_{ 5,22}$--25$_{ 5,21}$ &  236~454.502 &    40 &  173 &         166 &   37 & Blend with SO, $v=$ 0 and $^{13}$CH$_3$CH$_2$CN, $v=$ 0, baseline problem? \\ 
 299 & 26$_{16,10}$--25$_{16, 9}$$^\star$ &  236~469.303 &    35 &  456 &         107 &   37 & Weak, blend with CH$_2$CH$^{13}$CN \\ 
 301 & 26$_{ 5,21}$--25$_{ 5,20}$ &  236~481.643 &    40 &  173 &         166 &   37 & Blend with CH$_2$$^{13}$CHCN \\ 
 302 & 26$_{17, 9}$--25$_{17, 8}$$^\star$ &  236~553.897 &    80 &  496 &          99 &   37 & Weak, blend with t-C$_2$H$_5$OCHO, $^{13}$CH$_3$CH$_2$CN, $v=$ 0, and  \\ 
 & & & & & & & CH$_3$COOH, $v_{{\rm t}}$ = 0 \\ 
\hline
 304 & 27$_{ 1,26}$--26$_{ 1,25}$ &  244~135.969 &    14 &  156 &         178 &   46 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 \\ 
 305 & 28$_{ 1,28}$--27$_{ 1,27}$ &  244~585.841 &    21 &  161 &         186 &   39 & Strong CH$_3$OCHO and HCC$^{13}$CN, $v=$ 0 \\ 
 306 & 28$_{ 0,28}$--27$_{ 0,27}$ &  244~765.968 &    21 &  160 &         186 &   39 & \textbf{Detected}, blend with CH$_3$$^{13}$CH$_2$CN, $v=$ 0 and U-line \\ 
 307 & 27$_{ 3,25}$--26$_{ 3,24}$ &  245~102.984 &    11 &  164 &         177 &   72 & Blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0 \\ 
 308 & 27$_{ 9,18}$--26$_{ 9,17}$$^\star$ &  245~202.855 &    16 &  253 &         159 &   72 & Blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0 and U-line? \\ 
 310 & 27$_{10,17}$--26$_{10,16}$$^\star$ &  245~213.055 &    19 &  276 &         155 &   72 & Strong CH$_3$OH, $v=$ 0 \\ 
 312 & 27$_{ 8,20}$--26$_{ 8,19}$$^\star$ &  245~217.230 &    13 &  232 &         164 &   72 & Strong CH$_3$OH, $v=$ 0 \\ 
 314 & 27$_{11,16}$--26$_{11,15}$$^\star$ &  245~241.163 &    21 &  302 &         150 &   72 & Blend with C$_2$H$_5$$^{13}$CN, $v=$ 0 and C$_2$H$_3$CN, $v_{15}$ = 1 \\ 
 316 & 27$_{ 7,21}$--26$_{ 7,20}$$^\star$ &  245~268.168 &    11 &  213 &         167 &   72 & Blend with HC$_3$N, $v_4$ = 1 \\ 
 318 & 27$_{12,15}$--26$_{12,14}$$^\star$ &  245~283.214 &    24 &  330 &         144 &   72 & Blend with C$_2$H$_5$$^{13}$CN, $v=$ 0 \\ 
 320 & 27$_{13,14}$--26$_{13,13}$$^\star$ &  245~336.715 &    26 &  361 &         138 &   72 & Strong SO$_2$, $v=$ 0 \\ 
 322 & 27$_{ 6,22}$--26$_{ 6,21}$ &  245~378.722 &    10 &  197 &         170 &   72 & \textbf{Group detected}, blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0? \\ 
 323 & 27$_{ 6,21}$--26$_{ 6,20}$ &  245~380.146 &    10 &  197 &         170 &   72 & \textbf{Group detected}, blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0? \\ 
 \hline
 324 & 27$_{14,13}$--26$_{14,12}$$^\star$ &  245~400.026 &    29 &  394 &         131 &   72 & Blend with U-line, CH$_3$CH$_3$CO, $v=$ 0 and $^{13}$CH$_3$CH$_2$CN, $v=$ 0? \\ 
 326 & 27$_{15,12}$--26$_{15,11}$$^\star$ &  245~472.024 &    33 &  429 &         124 &   72 & Weak, strong C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 and C$_2$H$_3$CN, $v_{11}$ = 1 \\ 
 328 & 27$_{16,11}$--26$_{16,10}$$^\star$ &  245~551.911 &    40 &  467 &         116 &   53 & Weak, blend with SO$_2$, $v=$ 0 \\ 
 330 & 27$_{ 5,23}$--26$_{ 5,22}$ &  245~585.766 &    10 &  184 &         173 &   53 & Strong CH$_2$$^{13}$CHCN and HC$_3$N, $v=$ 0 \\ 
 331 & 27$_{ 5,22}$--26$_{ 5,21}$ &  245~623.711 &    10 &  184 &         173 &   53 & Strong HC$_3$N, $v_5$ = 1$/$$v_7$ = 3 and CH$_2$$^{13}$CHCN \\ 
 332 & 27$_{17,10}$--26$_{17, 9}$$^\star$ &  245~639.099 &    51 &  507 &         108 &   53 & Weak, blend with C$_2$H$_3$CN, $v_{15}$ = 2 \\ 
 334 & 27$_{18, 9}$--26$_{18, 8}$$^\star$ &  245~733.144 &    67 &  550 &         100 &   53 & Weak, strong HNCO, $v_5$ = 1 \\ 
 336 & 27$_{ 4,24}$--26$_{ 4,23}$ &  245~803.548 &    10 &  173 &         175 &   53 & Blend with CH$_2$CH$^{13}$CN \\ 
 337 & 27$_{19, 8}$--26$_{19, 7}$$^\star$ &  245~833.697 &    88 &  595 &          91 &   53 & Weak, strong U-line, partial blend with CH$_2$CH$^{13}$CN and  \\ 
 & & & & & & & C$_2$H$_3$CN, $v_{11}$ = 1$/$$v_{15}$ = 1 \\ 
 339 & 27$_{20, 7}$--26$_{20, 6}$$^\star$ &  245~940.476 &   116 &  642 &          81 &   53 & Weak, strong U-line and CH$_3$OCHO, $v_{{\rm t}}$ = 1 \\ 
 341 & 27$_{21, 6}$--26$_{21, 5}$$^\star$ &  246~053.247 &   150 &  692 &          71 &   53 & Weak, strong CH$_3$OCHO \\ 
\hline
 343 & 28$_{ 3,26}$--27$_{ 3,25}$ &  254~085.051 &    12 &  176 &         184 &   32 & Blend with CH$_3$CH$_3$CO, $v=$ 0 and C$_2$H$_5$CN, $v=$ 0 \\ 
 344 & 28$_{ 9,19}$--27$_{ 9,18}$$^\star$ &  254~283.930 &    19 &  264 &         167 &   32 & Strong SO$_2$, $v=$ 0 and $^{13}$CH$_3$OH, $v=$ 0 \\ 
 346 & 28$_{10,18}$--27$_{10,17}$$^\star$ &  254~290.939 &    22 &  288 &         162 &   32 & Strong SO$_2$, $v=$ 0, $^{13}$CH$_3$OH, $v=$ 0, $^{13}$CH$_2$CHCN,  \\ 
 & & & & & & & $^{13}$CH$_3$CH$_2$CN, $v=$ 0, and H$^{13}$CONH$_2$, $v_{12}$ = 1 \\ 
 348 & 28$_{ 8,21}$--27$_{ 8,20}$$^\star$ &  254~303.873 &    15 &  244 &         171 &   32 & Blend with $^{13}$CH$_3$CH$_2$CN, $v=$ 0 and C$_2$H$_5$CN, $v=$ 0 \\ 
 350 & 28$_{11,17}$--27$_{11,16}$$^\star$ &  254~317.460 &    26 &  314 &         157 &   32 & Strong C$_2$H$_5$CN, $v=$ 0 and $^{13}$CH$_3$OH, $v=$ 0 \\ 
 352 & 28$_{12,16}$--27$_{12,15}$$^\star$ &  254~359.074 &    29 &  342 &         152 &   32 & Blend with H$^{13}$CONH$_2$, $v=$ 0 \\ 
 354 & 28$_{ 7,22}$--27$_{ 7,21}$$^\star$ &  254~364.160 &    12 &  225 &         174 &   32 & Blend with H$^{13}$CONH$_2$, $v=$ 0 \\ 
 356 & 28$_{13,15}$--27$_{13,14}$$^\star$ &  254~413.004 &    32 &  372 &         146 &   32 & Strong C$_2$H$_5$CN, $v=$ 0, H$^{13}$CONH$_2$, $v=$ 0, and CH$_3$OH, $v=$ 0 \\ 
\hline
%&&&&&&& \\[-8pt]
 358 & 28$_{22, 6}$--27$_{22, 5}$$^\star$ &  255~273.081 &   196 &  755 &          71 &  217 & Weak, strong $^{13}$CH$_3$OH, $v=$ 0 and CH$_2$CH$^{13}$CN \\ 
 360 & 28$_{23, 5}$--27$_{23, 4}$$^\star$ &  255~401.564 &   245 &  809 &          60 &  217 & Weak, blend with CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1 \\ 
 362 & 28$_{24, 4}$--27$_{24, 3}$$^\star$ &  255~535.733 &   304 &  866 &          49 &  217 & Weak, blend with SO$_2$, $v=$ 0 and U-line? \\ 
 364 & 28$_{ 4,24}$--27$_{ 4,23}$ &  255~674.369 &    18 &  185 &         182 &  217 & Strong HC$_3$N, $v_7$ = 1 \\ 
 365 & 28$_{25, 3}$--27$_{25, 2}$$^\star$ &  255~675.432 &   372 &  925 &          38 &  217 & Strong HC$_3$N, $v_7$ = 1 \\ 
\hline
 367 & 28$_{ 2,26}$--27$_{ 2,25}$ &  258~775.885 &    19 &  172 &         185 & 1609 & Weak, blend with CH$_3$OH, $v=$ 0 \\ 
\hline
 368 & 29$_{ 9,20}$--28$_{ 9,19}$$^\star$ &  263~364.923 &    22 &  277 &         174 &   74 & \textbf{Group detected}, baseline problem?, blend with U-line \\ 
 370 & 29$_{10,19}$--28$_{10,18}$$^\star$ &  263~368.355 &    26 &  300 &         170 &   74 & \textbf{Group detected}, baseline problem?, blend with U-line \\ 
 372 & 29$_{ 8,22}$--28$_{ 8,21}$$^\star$ &  263~390.982 &    17 &  256 &         178 &   74 & Blend with HNCO, $v_4$ = 1 and CH$_3$OCH$_3$ \\ 
 374 & 29$_{11,18}$--28$_{11,17}$$^\star$ &  263~393.008 &    31 &  326 &         165 &   74 & Blend with HNCO, $v_4$ = 1 and CH$_3$OCH$_3$ \\ 
 376 & 29$_{12,17}$--28$_{12,16}$$^\star$ &  263~433.971 &    35 &  354 &         160 &   74 & Strong HC$_3$N, $v_4$ = 1, HNCO, $v_5$ = 1, and HNCO, $v=$ 0 \\ 
 378 & 29$_{ 7,23}$--28$_{ 7,22}$$^\star$ &  263~461.436 &    14 &  237 &         181 &   74 & Blend with HNCO, $v=$ 0, CH$_3$CH$_3$CO, $v=$ 0 and C$_2$H$_5$OH \\ 
 380 & 29$_{13,16}$--28$_{13,15}$$^\star$ &  263~488.164 &    40 &  385 &         154 &   74 & Blend with C$_2$H$_5$$^{13}$CN, $v=$ 0 \\ 
 382 & 29$_{14,15}$--28$_{14,14}$$^\star$ &  263~553.566 &    44 &  418 &         148 &   74 & Strong SO$_2$, $v=$ 0, HCONH$_2$, $v_{12}$ = 1, and CH$_2$(OH)CHO \\ 
 384 & 29$_{ 6,24}$--28$_{ 6,23}$ &  263~604.573 &    12 &  221 &         184 &   74 & \textbf{Group detected}, baseline problem?, partial blend with  \\ 
 & & & & & & & CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1 and CH$_3$OCH$_3$ \\ 
 385 & 29$_{ 6,23}$--28$_{ 6,22}$ &  263~607.689 &    12 &  221 &         184 &   74 & \textbf{Group detected}, baseline problem?, partial blend with  \\ 
 & & & & & & & CH$_3$CH$_3$CO, $v_{{\rm t}}$ = 1 and CH$_3$OCH$_3$ \\ 
 386 & 29$_{15,14}$--28$_{15,13}$$^\star$ &  263~628.792 &    50 &  453 &         141 &   74 & Strong CH$_3$OCH$_3$ \\ 
 388 & 29$_{16,13}$--28$_{16,12}$$^\star$ &  263~712.865 &    57 &  491 &         134 &  108 & Weak, strong HCC$^{13}$CN, $v_7$ = 1 and HNCO, $v_6$ = 1 \\ 
 390 & 29$_{17,12}$--28$_{17,11}$$^\star$ &  263~805.068 &    67 &  531 &         126 &  108 & Weak, strong HC$_3$N, $v_5$ = 1$/$$v_7$ = 3 and C$_2$H$_5$CN, $v=$ 0 \\ 
 392 & 29$_{ 5,25}$--28$_{ 5,24}$ &  263~857.842 &    12 &  208 &         187 &  108 & Blend with HCONH$_2$, $v=$ 0 and C$_2$H$_5$$^{13}$CN, $v=$ 0 \\ 
 393 & 29$_{18,11}$--28$_{18,10}$$^\star$ &  263~904.858 &    81 &  574 &         118 &  108 & Weak, blend with SO$_2$, $v=$ 0, C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1, and U-line? \\ 
 395 & 29$_{ 5,24}$--28$_{ 5,23}$ &  263~928.994 &    13 &  208 &         187 &  108 & Blend with C$_2$H$_5$CN, $v_{13}$ = 1/$v_{21}$ = 1 and C$_2$H$_5$CN, $v=$ 0 \\ 
 396 & 29$_{19,10}$--28$_{19, 9}$$^\star$ &  264~011.816 &   101 &  619 &         110 &  108 & Weak, strong CH$_3$$^{13}$CH$_2$CN, $v=$ 0 \\ 
 398 & 29$_{ 4,26}$--28$_{ 4,25}$ &  264~055.836 &    13 &  197 &         189 &  108 & \textbf{Detected}, partial blend with C$_2$H$_5$CN, $v=$ 0 and  \\ 
 & & & & & & & CH$_3$CH$_3$CO, $v=$ 0 \\ 
 \hline
 \end{tabular}
\medskip
$^a$ Numbering of the observed transitions with $S\mu^2$ $>$ 20 D$^2$. \\
$^b$ Transitions marked with a $^\star$ are double with a frequency difference less than 0.1~MHz. The quantum numbers of the second one are not shown. \\
$^c$ Frequency uncertainty. \\
$^d$ Lower energy level in temperature units ($E_{\rm l}/$$k_{\rm B}$). \\
$^e$ Calculated rms noise level in $T_{{\rm mb}}$~scale.
\end{table}