January Imidogen radical
NH
NH
February Cyanopentaacetylene
*HC11N*
HC11N
March Aluminum monohydroxide
AlOH
Aluminum monohydroxide
April Hydroperoxyl radical
HO2
Hydroperoxyl radical
May Fluoromethylidynium cation
CF+
Fluoromethylidynium cation
June Nitrous oxide
N2O
Nitrous oxide
July Carbon monoxide cation
CO+
Carbon dioxide cation
August Pyrimidine
*C4H4N2*
Pyrimidine
September Ethynyl radical
C2H
Ethynyl radical
October Hydromagnesium isocyanide
HMgNC
Hydromagnesium isocyanide
November Cyanobutadiynyl radical
C5N
Cyanobutadiynyl radical
December Silicon nitride
SiN
Silicon Nitride
red stars * indicate a non-detection
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