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>>
Bromoethane
Product name: Bromoethane
CAS NO: 74-96-4
Molecular weight: 108.97 
EC NO: 200-825-8
Molecular formula: C2H5Br
InChI: InChI=1/C2H5Br/c1-2-3/h2H2,1H3
Structural formula:
  Order                   Back