国产乱对白精彩在线播放_亚洲国产午夜网站在线_国产在线国语对白_99re6免费视频 这里只有精品

Welcome to visit Changzhou Chengbang Chemical Co., Ltd. official website!

CollectionHomepage中文版

More>>
Methenamine
Product name: Methenamine
CAS NO: 100-97-0
Molecular weight: 140.18808 
EC NO: 202-905-8
Molecular formula: C6H12N4
InChI: InChI=1/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2/p+4
Structural formula:
  Order                   Back