亚洲性猛交XXXX乱大交,亚洲欧美日韩另类丝袜,国产精品久久久久久久久久久不卡,92午夜福利亚洲一区二区,最新99在线视频精品,一区二区三区四区看av,图片偷拍亚洲综合另类,一区二区三区乱码在线中文老阿姨,日本欧美国产中文字幕

Welcome to Zhejiang Youchuang Material Technology Co.,Ltd Website!
PRODUCTS
Product
Position:Home > Product
N-tert-butyl-4-aminobenzamide

It can be used as the main raw material of ultraviolet absorber to produce ultraviolet absorber HEB, which is widely used in plastics and coatings to prevent ultraviolet damage to materials ‌. In addition, it is also commonly used as pharmaceutical intermediates, which are used to synthesize precursors of some drugs, participate in organic synthesis reactions, and provide the necessary chemical structural units ‌.

 

Contact us
  • Tel: +86-575-84817945 84815521
  • Fax: +86-575-84815521 84817949
  • LINK MAN:Manager Wei
  • E-mail: lhfc@lhfc.sina.net
Copyright(C)2018,Zhejiang Youchuang Material Technology Co.,Ltd.?All Rights Reserved.Supported by?ChemNet?ChinaChemNet?Toocle?Copyright Notice