Hangzhou Jingyou Chemical Co.,Ltd.

Products


Tobias acid


Name:Tobias acid

Molecular formula:C10H9NO3S

Molecular weight:223.25

Structural formula:

 

CAS NO:81-16-3

Specifications:

Appearance:White to light pink powder.

Item

Superior products

First grade product

Qualified product

Total amino value (in dry products)

≥98.5%

≥98.5%

≥97%

2-naphthylamine

≤ 0.01%

≤0.10%

≤0.25%

Moisture

≤1.0%

≤1.0%

≤2.0%

Purpose:This product is an intermediate of azo dyes, used for the manufacture of J acid and gamma-acid, chromophenol AS-SW, reactive red K-1613, organic amaranth, Risol amaranth and Risol red.