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88-50-6 Usage

General Description

4-Amino-2,5-dichlorobenzenesulfonic acid is a chemical compound with the molecular formula C6H5Cl2NO3S. It is a derivative of benzenesulfonic acid and is commonly used in organic synthesis and as an intermediate for the production of dyes and pharmaceuticals. The compound is a white crystalline solid that is soluble in water and has a strong acidic nature. It is a strong reducing agent and can react violently with oxidizing agents. Due to its potential health hazards and environmental impact, the handling and disposal of 4-Amino-2,5-dichlorobenzenesulfonic acid should be done with care and in accordance with regulations.

Check Digit Verification of cas no

The CAS Registry Mumber 88-50-6 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 88-50:
66 % 10 = 6
So 88-50-6 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name 2,5-Dichlorosulfanilic Acid

1.2 Other means of identification

Product number -
Other names 4-Amino-2,5-dichlorobenzenesulfonic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:88-50-6 SDS

88-50-6Relevant articles and documents

Bisazo brown reactive dye


, (2008/06/13)

A brown reactive dye represented by a free acid of the formula, STR1 wherein R is a hydrogen atom or a C1 to C4 alkyl group, X is --SO2 CH2 CH2 Cl, --SO2 CH=CH2, --SO2 CH2 CH2 OSO3 H or --SO2 CH2 CH2 OPO3 H2, rings A, B and C are each a benzene or naphthalene ring which may have other substituent, m is 0 to 3 and n is 0 to 1. This dye is suitable for dyeing cellulose fibers brown to afford dyeings superior in fastnesses, acid stability, build-up property and level dyeing property.

Barium laked phenylazonaphthalene dye containing sulfonic acid groups


, (2008/06/13)

Azo dyes containing sulfonic acid groups laked with barium and derived from an anilinesulfonic acid as diazo component and a β-naphtholsulfonic acid as coupling component for example a dye of the formula STR1 The dyes are eminently suitable as pigments for coloring surface coating compositions, printing inks and particlarly resins.

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