88-50-6

Basic information

• Product Name: 4-Amino-2,5-dichlorobenzenesulfonic acid
• Synonyms: 4-AMINO-2,5-DICHLOROBENZENESULFONIC ACID;1-AMINO-2,5-DICHLORO-4-SULFOBENZENE;2,5-DICHLOROSULFANILIC ACID;2,5-DICHLOROANILINE-4-SULFONIC ACID;2,5-DICHLORO-5-SULFAMOYLBENZOIC ACID;2,5-DICHLORO-4-SULFOANILINE;2,5-dichlorosulphanilicacid;4-amino-2,5-dichloro-benzenesulfonicaci
• CAS NO: 88-50-6
• Molecular Formula: C₆H₅Cl₂NO₃S
• Molecular Weight: 242.08
• EINECS: 201-836-0
• Mol File: 88-50-6.mol

Chemical Properties

• Flash Point: 11°C
• Appearance: /
• Density: 1.749 g/cm³
• Refractive Index: 1.648
• Storage Temp.: 2-8°C
• PKA: -2.07±0.50(Predicted)
• CAS DataBase Reference: 4-Amino-2,5-dichlorobenzenesulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Amino-2,5-dichlorobenzenesulfonic acid(88-50-6)
• EPA Substance Registry System: 4-Amino-2,5-dichlorobenzenesulfonic acid(88-50-6)

Safety Data

• Hazardous Substances Data: 88-50-6(Hazardous Substances Data)

Usage

Uses

Used in Organic Synthesis:
4-Amino-2,5-dichlorobenzenesulfonic acid is utilized as an intermediate in organic synthesis for the production of various chemical compounds. Its unique structure and reactivity make it a valuable component in the synthesis of complex organic molecules.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 4-Amino-2,5-dichlorobenzenesulfonic acid is used as a key intermediate in the synthesis of certain drugs. Its presence in the molecular structure of these drugs contributes to their therapeutic properties and effectiveness.
Used in Dye Production:
4-Amino-2,5-dichlorobenzenesulfonic acid is employed as an intermediate in the production of dyes. Its chemical properties allow for the creation of dyes with specific color characteristics and stability, making it an important component in the dye manufacturing process.
Used in Environmental and Health Safety:
Due to its potential health hazards and environmental impact, 4-Amino-2,5-dichlorobenzenesulfonic acid is used in the development of safety protocols and regulations for its handling and disposal. This ensures that the risks associated with its use are minimized, protecting both human health and the environment.

InChI:InChI=1/C6H5Cl2NO3S/c7-3-2-6(13(10,11)12)4(8)1-5(3)9/h1-2H,9H2,(H,10,11,12)

Upstream product

• 95-82-9 2,5 dichloroaniline 
• 7647-01-0 hydrogenchloride 
• 861784-97-6 2,5-dichloro-4-nitro-benzenesulfonic acid 

Downstream Products

• 615-93-0 2,5-Dichloro-1,4-benzoquinone 
• 4857-94-7 2,5-dichloro-4-aminobenzenesulfonyl chloride 
• 27761-65-5 4,6-dibromo-2,5-dichloroaniline 
• 69121-21-7 2,5-dichloro-4-sulfo-benzenediazonium-betaine 
• 88-54-0 2,5-Dichloro-4-sulfo-benzenediazonium; chloride 

Relevant articles and documents

Bisazo brown reactive dye

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.

Azo dyestuffs

Azo dyestuffs, which in the acid form, are represented by the formula: wherein A is an aromatic radical, M is a 1,4-benzene radical which may be substituted, E is the residue of a coupling component which is free from azo groups, At least one of A and M containing a phosphonic acid group, and the metal complexes of those having a metallisable group are reactive dyes suitable for use in the process of German OLS No. 2324809.

Barium laked phenylazonaphthalene dye containing sulfonic acid groups

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.