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Table 1

Derived column densities and upper limits.

Species Name Column density (cm−2) Column density (cm−2)
Tex = 100 K Tex = 70–250 K
CH3OH Methanol 2 × 1015 1.0–2.5 × 1015
CH3OCH3 Dimethyl ether 1.5 × 1015 1.5–3.5 × 1015
CH3OCHO Methyl formate 1.3 × 1015 1.0–2.5 × 1015

13CH3OH Methanol <5.5 × 1014
CH2DOH Methanol <6.0 × 1014
t-HCOOH Formic Acid <2.0 × 1014
CH3CN Methyl cyanide <1.3 × 1013
CH3CHO Acetaldehyde <1.4 × 1014
CH3COOH Acetic acid <3.4 × 1015
CH2(OH)CHO Glycoaldehyde <1.8 × 1014
CH3SH Methyl mercaptan <4.0 × 1014
D2CO Formaldehyde <4.5 × 1013
HC3N Cyanoacetylene <2.2 × 1013
HNC Hydrogen cyanide <1.5 × 1012
HNCO Isocyanic acid <4.5 × 1013
NH2CH2COOH Glycine, conf. I <4.5 × 1015
NH2CH2COOH Glycine, conf. II <5.5 × 1014

Notes. Molecular information was obtained using the JPL and CDMS database (Müller et al. 2001, 2005; Pickett et al. 1998). The spectra were modelled using the CASSIS spectral analysis tool. For the detected lines, a range of Tex from 70 to 250 K was modelled. The 3σ upper limits were derivedassuming a Tex of 100 K.

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