日韩精品极品视频在线免费_午夜影院小视精品久久啦_日本成人高清在线_欧美一级在线精品免费播放_了解最新青草青精品视频_a毛片免费播放全部完整_日韩高清午夜福利小电影_亚洲综合中文字幕在线视频_久久精品亚洲二区_美女黄色av网站

Welcome to the official website of Changzhou Yonghe Fine Chemical Co., Ltd.!

CONTACT US

HOME

PRODUCTS  

5-(2-Hydroxy-3-naphthoylamino)benzimidazol-2-one

Product Code: ASBI
Products name: 5-(2-Hydroxy-3-naphthoylamino)benzimidazol-2-one
Category: Dye intermediates
CAS NO.: 26848-40-8
Molecular formula:  C18H13N3O3
Structural formula:
Quality Index: ① Appearance: Yellow powder
② Purity (%): ≥99.0
③ Loss on drying (%): ≤0.5
④ Alkali insoluble matter (%): ≤1.0
⑤ ABI Purity (%): ≤0.15
⑥ 2,3 acid (%): ≤0.1
⑦ PH: 7-7.5
Uses: The product is the special intermediate for benzimidazolone series of organic pigments, mainly for the synthesis of dark high-grade azo pigments, including C. I. Pigment Red 171,176,185,208, Pigment Purple 32, Pigment Brown 25, and so on more than ten kinds of important products. 5-Amino-2 (3H) -benzimidazolone synthesis of ASBI, can be used for the synthesis of pigment red 171,175,176,185,208, purple 33, brown 25 and other important products.

HOME    ABOUT US    PRODUCTS    NEWS    FACTORY    HONORS    CONTACT    中文版

Mobile version

WeChat

Integrity and self-discipline, eternal promise
Cleaner production, environmentally friendly
Independent innovation, the pursuit of excellence
People-oriented, harmonious development

Copyright(C)2020, Changzhou Yonghe Fine Chemical Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice 備案序號(hào):蘇ICP備11045555號(hào)-2