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5-Methyl quinoxaline
5.6.7.8-tetrahydro quinoxaline
2-Methoxy pyrazine
2-Acetyl-3-methylpyrazine
2-Methoxy-3-sec-butylpyrazine
2-Methoxy-3-isobutyl pyrazine
2-Isobutyl-3-methyl pyrazine
2-Methyl-3(5hoặc6)-ethoxy pyrazine
2-Methyl-3,(5or6)-(furfurylthio)-pyrazine
2-Methoxypyrazine
2-Methyl-3(5hoặc6)-methylthio pyrazine
2-Methoxy-3,5or6-methyl-pyrazine
2-Ethyl-3,(5hoặc6)-dimethyl pyrazine
2,3-Diethyl-5-methyl pyrazine
2,3-Diethyl pyrazine
2-Ethyl pyrazine
2,3,5,6-tetramethyl pyrazine
2,3,5-Trimthyl pyrazine
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