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!

Collection ｜Homepage ｜中文版

More>>
N,N-Dimethylacetamide
Product name: N,N-Dimethylacetamide
CAS NO: 127-19-5
Molecular weight: 87.1204 
EC NO: 204-826-4
Molecular formula: C4H9NO
InChI: InChI=1/C4H9NO/c1-3(2)4(5)6/h3H,1-2H3,(H2,5,6)
Structural formula:
  Order                   Back