January Ammonium Cation
NH+
4
, NH3D+
February Ammonium Cyanide
NH4CN-4H2O
March Pyrrole
*c-C4H5N
*
April Indene
c-C9H8
May Isocyanodiacetylene
HC4NC
June Propargyl cyanide
HCCCH2CN
July Thioformic acid
t-HCOSH
August Cyano thioformaldehyde
HCSCN
September Thiocyanato radical
NCS
October Ethynethiol
*HCCSH
*
November Vinylcyanoacetylene
C2H3C3N
December Glycolonitrile
HOCH2CN
red stars * indicate a non-detection
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