天堂aⅴ无码av专线av,精品亚洲成A人在线观看青青,老鸭窝AV在线永久免费观看,H动漫全彩纯肉无码无遮挡软件

Product Center

2,6-Lutidine

Product Type 　Pyridine derivatives
Cas No. 　108-48-5
Structural formula
Detail

CAS No:108-48-5

Usage: Used as the intermediate of medicine, pesticides etc.

Appearance: Colorless to light yellow transparent liquid