Pyrazin
104027
N-Methyl-2-pyrazinamine
104062
Pyrazin-2-yl-hydrazine
104111
Iodopyrazine
104112
Ethylpyrazine
104113
2,5-Diethylpyrazine
104114
2,3-Dimethyl-5-ethylpyrazine
104115
2-Methoxy-3-isobutyl pyrazine
104116
2-Methyl-3-(methylthio)pyrazine
104117
2-Ethyl-3-methoxypyrazine
104118
2-Acetyl-3-methylpyrazine
104119
2-Acetyl-3-ethylpyrazine
104155
2-Ethyl-5-methylpyrazine
114072
Pyrazinamide
116453
METHYL 2-PYRAZINEACETATE
116619
3-PIPERAZIN-1YLPYRAZINE-2-CARBONITRILE
117167
2,5-PYRAZINEDICARBOXYLIC ACID DIHYDRATE
117613
2-Chloro-pyrazine
117614
2-fluoropyrazine
117615
2-Bromopyrazine
117616
2,3-Dichloropyrazine
117617
2-Pyrazinecarboxylic acid
119330
6-Methylpyrazine-2-carboxylic acid
119622
3 7-hydroxy - 2 - ZhongDingJi pyrazine
119680
2，5(or 6)-Methoxy-3-methyl pyrazine-mixture of isomers
119682
2-ethyl-5(or6)-methoxypyrazine
119684
2-METHYLTHIO-3,5-METHYLPYRAZINE
119686
2-Furfurylthio-3-methylpyrazine
119690
2-Mercaptomethylpyrazine
120338
Pyrazinecarbonitrile
120357
2-PYRAZINECARBONYL CHLORIDE
120714
2,3-Diethyl-5-methylpyrazine
121632
Aminopyrazine
121845
5-ISOBUTYL-2,3-DIMETHYLPYRAZINE
121944
2,5-Dichloropyrazine
123346
Methyl 3,5-diamino-6-chloropyrazine-2-carboxylate
123374
Methyl 3-amino-2-pyrazinecarboxylate