成人一级片在线观看,久久91精品国产91久久小草,99久久免费看精品国产一区非洲,婷婷色六月天,国产一区日韩精品,亚洲午夜久久,又大又黄又爽视频一区二区

Professional development and production of pharmaceutical intermediate products

The main products are: rebamipide, 2,3-dibromo-2-butene-1,4-diol, 2-acetoxyisobutyryl chloride, ethyl silicate (condensation), anhydrous lithium bromide, a Methylamine methanol solution, tetradecyl trimethyl ammonium bromide.

PRODUCTS

changteng new pharmaceutical

Hexadecyltrimethylammonium bromide
Molecular formula:

C19H42NBr

Molecular weight:

364.46

CAS NO.:

57-09-0

Character:

This product is a kind of quaternary ammonium salt, which is white or light yellow microcrystalline powder with pungent smell and hygroscopicity. It is easily soluble in ethyl / isopropyl alcohol and chloroform, soluble in 10 parts of water, slightly soluble in acetone, almost insoluble in ether and benzene, and stable in acid solution.

Appearance:

White or light yellow microcrystalline powder

Content:

≥99%

Melting point:

240℃

Loss on drying:

≤0.5%

Purpose:

This product is natural, synthetic rubber, silicone oil, asphalt emulsifier and surfactant.

Storage instructions:

Keep containers sealed, store in a cool, dry place, and avoid contact with oxides and moisture.

 

[ BACK ]

HOME  |   ABOUT US  |   PRODUCTS  |   NEWS  |   FACTORY  |   ORDER  |   CONTACT  |   中文版

Copyright(C)2021, Sanmenxia Changteng New Pharmaceutical Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice 備案序號:豫ICP備2021004613號