亚洲熟女偷拍精品一区_国产91小仙女福利在线精品剧情_国产馆无码馆中文馆日粉_国产午夜精品一二三区免费_日产成a人亚洲精v品无码

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

Collection ｜Homepage ｜中文版

More>>
Pure Benzene
Product name: Benzene
CAS NO: 71-43-2;174973-66-1;54682-86-9
Molecular weight: 78.11 
EC NO: 200-753-7
Molecular formula: C6H6
InChI: InChI=1/C6H6/c1-2-4-6-5-3-1/h1-6H
Structural formula:
  Order                   Back