色综合久久综合网欧美综合网-色婷婷综合久久久-国内久久久久久久久久-久久久久久精品久久久 ,AV欧日韩在线观看_国产日韩综合一区_人人妻人人爽人人狠狠一_亚洲人成久久播播

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

CollectionHomepage中文版

More>>
Bromine
Product name: Bromine
CAS NO: 7726-95-6
Molecular weight: 159.808 
EC NO: 231-778-1
Molecular formula: Br2
InChI: InChI=1/Br2/c1-2
Structural formula:
  Order                   Back