欧美性理论片在线观看片免费_日本人AA片免费观看_国产日本欧美亚洲精品视_欧美娇小18videos

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