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>>
Tetramethylene sulfone
Product name: Tetramethylene sulfone
CAS NO: 126-33-0
Molecular weight: 120.1701 
EC NO: 204-783-1
Molecular formula: C4H8O2S
InChI: InChI=1/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2
Structural formula:
  Order                   Back