}Џл޹˾
 İ
English
 
˾ Isu aƷչʾ „ӑB Ƹ ھԃ “ϵ҂
  Ŀ
˾
Isu
˾DƬ
aƷչʾ
„ӑB
ƸϢ
ھԃ
“ϵ҂
aƷԔ
aƷQ: 5-׻-2-
CAS RN: 5521-55-1
Ӣ: 5-Methyl-2-pyrazinecarboxylic acid
e: 5-Methylpyrazine-2-carboxylic acid
aƷQ: 2-Ȼ-5-׻; 5-׻-2-
ʽ: C6H6N2O2
: 138.12
CAS ̖: 5521-55-1
c: 166-169 ºC
ΣUƷ־: Xi     
ΣUea: R41     
ȫf: S26; S39     
ء

ַKʡ}Эh·149̖ ]: 224 000 Ԓ+86-515-8898 1987 棺+86-515-8839 6093
© 2010 }Џл޹˾
14ʤԤ⼼ ò1ʽ61Ǯ Ĵʮǰѡͼ ϲƱƽ̨ ƱλԤ ƱͶʵȱ ڻʽֹԹ涨 Ϻ5ֲƭ Ʊʹ˾ Ʊappĸ Ϻ11ѡ5һţͼ