99热都是精品久久久免费观看|一级黄色片日本免费三分钟|成人视频在线99|美女一区=区三区|91官网视频网站|日韩成人精品AV一二三区|国产欧美黄片日韩性播播|激情另类2区五A级毛片|日韩免费A级视频无码|中文字幕日逼电影

Products

4-β-Hydroxyethylsulfonyl sulfate aniline-2-sulfonic acid

English name: Aniline-4-beta-ethyl sulfonyl sulfate-2-sulfonic acid
Alias: Sulfonic para base ester
Structural formula:  

Molecular formula: C8H11O9S3
Molecular weight: 361.37
CAS NO.: 42986-22-1


Quality index:

Appearance Light purple tide
Content ≥ 65%
Purity ≥ 92%


To use: Reactive dye intermediates used in place of para esters.