Language:中文 En
產品展示
Cysteamine HCL 99%

Cysteamine HCL 99%

Main material to produce ranitidine and cimetidine, also can be used in the making of feed additive and pesticide. ...

Cysteamine HCL 95%

Cysteamine HCL 95%

Main material to produce ranitidine and cimetidine, also can be used in the making of feed additive and pesticide ...

Methyl glyoxal

Methyl glyoxal

It is mainly used to synthesize 4-methylimidazole an important intermediate of cemitidine. And it can also be used as spi ...

4-Methylimidazole

4-Methylimidazole

It is an important organic intermediate. ...


又大又硬又黄的免费视频_真人无码作爱免费视频_免费男女羞羞的视频网站