4-Chloroaniline-2-sulfonic acid

BGC Id:	592114148746
CAS No:	133-74-4
Synonyms:	2-amino-5-chlorobenzenesulfonic acid ; 4-chloroaniline-2-sulfonic acid ; p-chloroaniline-2-sulphonic acid ; 4-chloroaniline-2-sulphonic acid ; 2-amino-5-chlorobenzenesulfonic acid, pharm grade 98% ; 4-aminochlorobenzene-3-sulfonic acid / 4-chloroaniline-2-sulfonic acid ; p-chloroaniline-o-sulfonic acid ; 2-amino-5-chlorobenzenesulphonicacid ; 5-chloroorthanilic acid ; 2-azanyl-5-chloro-benzenesulfonic acid
Molecular Formula:	C6H6ClNO3S
Molecular Weight:	207.63
EINECS:	205-119-3

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The following 2 notable providers have been checked and can be recommended.

Dayang Chem

Xiamen Equation Chemical

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The last intensive check and update was carried out on 2026/03/01.

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Synonyms:

2-amino-5-chlorobenzenesulfonic acid ; 4-chloroaniline-2-sulfonic acid ; p-chloroaniline-2-sulphonic acid ; 4-chloroaniline-2-sulphonic acid ; 2-amino-5-chlorobenzenesulfonic acid, pharm grade 98% ; 4-aminochlorobenzene-3-sulfonic acid / 4-chloroaniline-2-sulfonic acid ; p-chloroaniline-o-sulfonic acid ; 2-amino-5-chlorobenzenesulphonicacid ; 5-chloroorthanilic acid ; 2-azanyl-5-chloro-benzenesulfonic acid

CAS:

133-74-4

EINECS:

205-119-3

Molecular Formula:

C6H6ClNO3S

MDL:

MFCD00035776

Properties

Molecular Weight:

207.63 g·mol−1

Melting point:

>300 °C

Suppliers

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer

Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. Gallium perchlorate is also served by Dayang Chem (Hangzhou) Co.,Ltd.. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...

Country: P.R.China Phone: +86-571-88938639 Telefax: +86-571-8893-8652

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Xiamen Equation Chemical Co.,Ltd

Company type: Bulk chemical producer

Country: P.R.China
Phone: +86 592 6515854
Telefax: +86 592 6515854

Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are committed to provide experienced high quality product and JIT performance to benefit our customers. We are seller of 2-Bromo-6-fluoroanisole.

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What other providers are available for CAS 133-74-4?

In addition to the providers presented here for 4-Chloroaniline-2-sulfonic acid with the CAS number 133-74-4, there are other 21 providers with slightly different product names available for this CAS number.

5-Chloroorthanilic acid

Shandong Chuangying Chemical Co., Ltd. | H&Z Industry Co.,Ltd | Xingrui Industry Co., Limited | Leap Chem Co., Ltd | Skyrun Industrial Co., Ltd. +5 additional providers that we know from the past

Hydrochlorothiazide impurity 1

+1 additional providers that we know from the past

p-Chloroaniline-2-sulfonic acid

+1 additional providers that we know from the past

2-Amino-5-chlorobenzenesulfonic acid

Xiamen Hisunny Chemical Co., Ltd. | AK Scientific, Inc. | BIOZOL Diagnostica Vertrieb GmbH +6 additional providers that we know from the past