99久久国产精品一区二区三区,亚洲av无码免费在线观看,一级a爱做片在线观看免,最新在线日韩欧美中文字幕,亲胸揉屁股膜下刺激视频免费网站

CAS:366789-02-8

Molecular formula：C19H18ClN3O5S 

Molecular weight：435.88

Appearance: White to quasi-white crystalline powder

Quantity standard: purity: 99.5%, maximum impurity 0.1%, drying weight loss 0.5%, melting point 229-234 C.

Burning residue 0.1%