2-乙?;拎? (2-Acetyl pyrazine ≥99%) 2-甲基吡嗪 (2-Methyl pyrazine ≥99%) 2.3-二甲基吡嗪 (2.3-Dimethyl pyrazine ≥99%) 2.5-二甲基吡嗪 (2.5-Dimethyl pyrazine ≥99%) 2.6-二甲基吡嗪 (2.6-Dimethyl pyrazine ≥98%) 2.3.5-三甲基吡嗪 (2.3.5-Trimethyl pyrazine ≥99%) 2.3.5.6-四甲基吡嗪 (2.3.5.6-Tetramethyl pyrazine ≥95%) 2-甲硫基-3-甲基吡嗪 (2-Methylthio-3-methyl pyrazine ≥99%) 2-甲氧基-3-甲基吡嗪 (2-Methoxy-3-methyl pyrazine ≥99%) 2-乙氧基-3-甲基吡嗪 (2-Ethoxy-3-methyl pyrazine ≥99%) 3-乙基-2-甲基吡嗪 (3-Ethyl-2-methyl pyrazine ≥99%) 2-甲氧基-3(或5或6)-甲基吡嗪 (2-Methoxy-3(or5or6)-methyl pyrazine ≥99%) 2-乙氧基-3(或5或6)-甲基吡嗪 (2-Ethoxy-3(or5or6)-methyl pyrazine ≥99%) 2-甲硫基-3(或5或6)-甲基吡嗪 (2-Mythylthio-3(or5or6)-methyl pyrazine ≥99%) 2-糠硫基-3(或5或6)-甲基吡嗪 (2-Furfurylthio-3(or5or6)-methyl pyrazine ≥99%) 2-乙基吡嗪 (2-Ethyl pyrazine ≥99%) 2-乙酰基-3-甲基吡嗪 (2-Acetyl-3-methyl pyrazine ≥99%)
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