国产色妞妞视频免费看-三级黄色片在线播放-中国大陆一级毛片免费-欧美中文字幕第一页-福利在线视频一区热舞-av麻豆精品插在线,精品自拍偷拍xxx,熟妇免费视频在线观看,中国国产1级毛卡片视频

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

Collection ｜Homepage ｜中文版

More>>
Ammonium chloride
Product name: Ammonium chloride
CAS NO: 12125-02-9
Molecular weight: 53.4916 
EC NO: 235-186-4
Molecular formula: NH4Cl
InChI: InChI=1/ClH.H3N/h1H;1H3
Structural formula:
  Order                   Back