尤物a∨视频在线观看_欧美俄罗斯乱妇_人妻少妇屁股翘水多视频_97国产精品系列在线观看

Product name：Pyridine Hydrochloride

CAS NO.: 628-13-7

Content：≥99%

Molecular formula：C₅H₆ClN

Molecular weight：115.5608

Structural formula：

Physical and chemical properties: Appearance: white crystal；Melting point 140-146°C；

Uses: used for pharmaceutical intermediates.

Packing：25KGdrum