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4-Chloro Benzene Sulfonamide (PCBS)


Para-Chlorobenzenesulfonamide; P-Chlorobenzenesulfonamide;
P-Chlorobenzenesulfamide; 4-Chlorobenzenesulfonamide;
Benzenesulfonamide, 4-chloro-; 4-Chlorophenylsulfonamide

Technical Data

CAS Number: 98-64-6
Molecular Formula: C6H6ClNO2S
Molecular Weight: 191.64
EC Number: 202-689-5

FabriChem Specifications

AppearanceA white powder
SolubilitySoluble in 10% NaOH
Identification by IRIR – Concordant with Standard
Melting Point142.0°C – 146.0°C
Moisture Content by KFNMT 0.5%
Purity (by HPLC)Min. 99.0%
Impurity IsomerNMT 0.2%
4,4-bis dichoro benzene sulfoneNMT 0.2%
Any other impurityNMT 0.1%
Total impurityNMT 0.5%

Molecular Structure



4-Chloro Benzene Sulfonamide (PCBS) is used as an intermediate for preparation of insecticides, and also as an intermediate in dyes.