\begin{table}%t1
\caption{Single-dish molecular line data set.}\label{data}
\small%\centerline
{
\begin{tabular}{l l c c c}
\hline \hline
% & & & & \\[-8pt]
         &            & $\int T_{\rm mb}$d$v$& {\it FWHM} & Beam  \\
Molecule & Transition & (K km s$^{-1}$) &(km s$^{-1}$)& ($''$)\\ 
\hline 
% & & & & \\[-8pt]
C$^{18}$O		& 1--0 & 1.8 $\pm$ 0.04	& 1.1 & 34\\
				& 2--1 & 2.8 $\pm$ 0.1	& 1.6 & 23\\
				& 3--2 & 3.4 $\pm$ 0.1	& 2.5 & 15\\
C$^{17}$O		& 1--0 & 0.5$^a$ $\pm$ 0.04	  & 2.9 & 22\\
 				& 2--1 & 1.2$^a$ $\pm$ 0.03   & 2.6 & 11\\
				& 3--2 & 0.7 $\pm$ 0.1	& 2.7 & 15\\
CS				& 2--1 & 1.2 $\pm$ 0.02	& 0.9 & 38\\
				& 5--4 & 0.6 $\pm$ 0.04	& 0.8 & 22\\
				& 7--6 & 0.7 $\pm$ 0.1  & 3.6 & 15\\	
C$^{34}$S		& 2--1 &$<$0.3$^b$      & -- & 39\\
				& 5--4 &$<$0.3$^b$      & -- & 21\\ 
HCO$^+$			& 1--0 & 6.7 $\pm$ 0.2	& 2.1	& 28\\
				& 3--2 & 6.9 $\pm$ 0.2	& 2.2	&19\\
				& 4--3 & 10.0 $\pm$ 0.3 & 2.5	&14\\
H$^{13}$CO$^+$	& 1--0 & 0.8 $\pm$ 0.1	& 0.8 & 43\\
				& 3--2 & 0.8 $\pm$ 0.1	& 1.8 & 19\\
HCN				& 1--0 & 2.4$^a$ $\pm$ 0.1   & 2.3 & 43\\
				& 4--3 & 1.3 $\pm$ 0.1	& 5.8 & 14\\
H$^{13}$CN  	& 1--0 &$<$0.5$^b$      & -- & 44\\
CN 				& 1$_{023}$--0$_{012}$ 	& 0.63 $\pm$ 0.12 & -- & 33\\
				& 3--2 & 0.67$^a$ $\pm$ 0.09		& 3.9 & 15\\
HNC				& 4--3 & 1.5 $\pm$ 0.3& 6.4  & 14\\
H$_2$CO			& 5$_{15}$--4$_{14}$ & 0.61 $\pm$ 0.07& 4.0 & 14\\
SO				& 2$_3$--1$_2$ 	& 0.3 $\pm$ 0.03& 0.8 & 38\\
\hline
\end{tabular}}
\medskip
$^a$ Intensity integrated over multiple hyperfine components. 
$^b$~No line detected. 3$\sigma$~upper limit, based on an assumed line width 
of 1.5~km~s$^{-1}$.
The error bars on the intensity does not include the 20\% calibration error.
\end{table}