欧美性理论片在线观看片免费_日本人AA片免费观看_国产日本欧美亚洲精品视_欧美娇小18videos

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

Collection ｜Homepage ｜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