斗转星移合成怎么进不去,a级片电影免费在线视频,九九热这里只有精品6,免费吃奶摸下激烈视频网址,国产麻豆a一级毛片爽爽影院,波霸女的淫欲生活,孽乱呻吟声老妇

  Dezhou first chemical co.,ltd
  Sell
       About us
       Products
       Buy
       Sell
       Contact us
       Chinese
Sell: 4,4-Bis(N-carbazolyl)-1,1-biphenyl
Date: 2015-08-27
Cas#: 58328-31-7
Specification: 98%minHPLC
Price:
Quantity: 200Kilogram
Term: 365
Note: 4,4-Bis(N-carbazolyl)-1,1-biphenyl
DCBP CBP
CAS No 58328-31-7
appearance茂錄擰off-white crystal or powder
purity茂錄擰98%minHPLC
Shanghai Danfan Network Science&Technology Co., Ltd. All Rights Reserved.