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

CollectionHomepage中文版

More>>
Glycerin
Product name: Glycerin
CAS NO: 56-81-5
Molecular weight: 92.0938 
EC NO: 200-289-5
Molecular formula: C3H8O3
InChI: InChI=1/C3H8O3/c1-2-3(4,5)6/h4-6H,2H2,1H3
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