4-Chlorobenzenesulfonic acid

CAS No.：98-66-8

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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4-Chlorobenzenesulfonic acid Basic information

Product Name:	4-Chlorobenzenesulfonic acid
Synonyms:	P-CHLOROBENZENESULFONIC ACID;4-CHLORO BENZENE SULPHONIC ACID;4-CHLOROBENZENESULFONIC ACID;4-Chlorobenzenesulfonec acid;4-CHLOROBENZENESULFONIC ACID, TECH., 90%;4-chloro-benzenesulfonicaci;Benzenesulfonic acid, 4-chloro-;Closylate
CAS:	98-66-8
MF:	C6H5ClO3S
MW:	192.62
EINECS:	202-690-0
Product Categories:	Organic Building Blocks;Sulfonic/Sulfinic Acids;Organic acids;Sulfur Compounds
Mol File:	98-66-8.mol

4-Chlorobenzenesulfonic acid Chemical Properties

Melting point	102 °C
Boiling point	149 °C/22 mmHg (lit.)
density	1.449 (estimate)
storage temp.	Sealed in dry,Room Temperature
form	solid
pka	-0.83±0.50(Predicted)
color	White to Light yellow to Light orange
Water Solubility	very faint turbidity
Merck	14,2122
Stability:	Stable. Incompatible with strong oxidizing agents.
InChIKey	RJWBTWIBUIGANW-UHFFFAOYSA-N
CAS DataBase Reference	98-66-8(CAS DataBase Reference)
NIST Chemistry Reference	4-Chlorobenzene sulfonic acid(98-66-8)
EPA Substance Registry System	Benzenesulfonic acid, 4-chloro- (98-66-8)

Safety Information

Hazard Codes	C
Risk Statements	34-22
Safety Statements	26-27-28-36/37/39-45-24/25
RIDADR	UN 2583 8/PG 2
WGK Germany	3
RTECS	DB5074000
HazardClass	8
PackingGroup	III
HS Code	29041000

MSDS Information

Provider	Language
4-Chlorobenzenesulfonic acid	English
SigmaAldrich	English
ACROS	English

4-Chlorobenzenesulfonic acid Usage And Synthesis

Chemical Properties	greyish-beige flaked solid
Uses	4-Chlorobenzenesulfonic acid was employed as anion dopants for the matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS) of neutral oligosaccharides.
General Description	4-Chlorobenzenesulfonic acid is the major polar by-product formed during the chemical synthesis of 1,1,1-trichloro-2,2-bis-(4-chlorophenyl)ethane (DDT).

4-Chlorobenzenesulfonic acid Preparation Products And Raw materials

Raw materials	FUMING SULFURIC ACID-->Copper(II) sulfate-->Sulfanilic acid-->4-CHLOROBENZENESULFONIC ACID SODIUM SALT
Preparation Products	4-Chloro-3-nitrobenzenesulfonic acid-->4-Chloro-3-nitrobenzenesulfonyl chloride

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