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!

CollectionHomepage中文版

More>>
Butyraldehyde
Product name: Butyraldehyde
CAS NO: 123-72-8
Molecular weight: 72.1057 
EC NO: 204-646-6
Molecular formula: C4H8O
InChI: InChI=1/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3
Structural formula:
  Order                   Back