吡嗪

2-cyanopyrazine is an important raw material in manufacturing pyrazinamide, anlitubercu-lar drug.

氰基吡产治疗结核病药物吡酰胺的重要原料。

Results Ethambutol hydrochloride, isoniazid, pyrazinamide and rifampicin all had good chromatographic behavior.

结果 盐酸乙胺丁醇、利福平、吡酰胺和异烟肼均具有良好的色谱行为。

CONCLUSION: Glipizide capsules were stable and the valid period was 2 years.

格列吡胶稳定性好，预测其有效期2年上。

Some important pyrazine flavors and their characteristic aromas and the general synthetic methods of pyrazines have been reviewed.

介绍了一些重要的吡类杂环香料及各自的特征香气,并综述了此类化合物的一般合成法。