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

CollectionHomepage中文版

More>>
Diethanolamine
Product name: Diethanolamine
CAS NO: 111-42-2
Molecular weight: 105.1356 
EC NO: 203-868-0
Molecular formula: C4H11NO2
InChI: InChI=1/C4H11NO2/c6-3-1-5-2-4-7/h5-7H,1-4H2
Structural formula:
  Order                   Back
 
 
 
 
 
国产色a在线观看,中文字幕人妻系列九九视频,日本成熟妇女性爱视频,国产精品系列在线