日韩欧美中文字幕有码人妻在线_亚洲人成在线观看无码_AA级片欧美久久片_少妇偷倩打野战 ,美国一级欧美三级,一级毛片试看,一级片在线观看免费,国产一级免费视频

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

CollectionHomepage中文版

More>>
Hydrazine hydrate
Product name: hydrazine hydrate
CAS NO: 10217-52-4;7803-57-8
Molecular weight: 50.053 
EC NO: 206-114-9
Molecular formula: H6N2O
InChI: InChI=1/H4N2.H2O/c1-2;/h1-2H2;1H2/p-1
Structural formula:
  Order                   Back