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Ʒ: 5-׻-2-
CAS RN: 5521-55-1
Ӣ: 5-Methyl-2-pyrazinecarboxylic acid
: 5-Methylpyrazine-2-carboxylic acid
Ʒ: 2-Ȼ-5-׻; 5-׻-2-
ʽ: C6H6N2O2
: 138.12
CAS ¼: 5521-55-1
۵: 166-169 ºC
ΣƷ־: Xi     
Σ: R41     
ȫ˵: S26; S39     
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