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2-Amino-5-chloro-4-methylbenzenesulfonic acid

Also known as: CLT acid, Lake Red C Amine, 2-Amino-5-chloro-p-toluenesulfonic acid, 2-Amino-5-chlorotoluene-4-sulfonic acid, 2-Amino-5-chlorotoluene-4-sulphonic acid, 4-Chloro-5-methylaniline-2-sulfonic acid, 4-Chloro-m-toluidine-6-sulfonic acid, 5-Amino-2-chloro-4-sulfotoluene, 5-Amino-2-chlorotoluene-4-sulfonic acid, 6-Chloro-3-amino toluene-4-sulfonic acid, 6-Chloro-3-toluidine-4-sulfonic acid, MFCD00043924, EINECS 201-839-7

2-Amino-5-chloro-4-methylbenzenesulfonic acid (CAS 88-53-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8ClNO3S and a molecular weight of 221.66100 g/mol. Key properties include a melting point of 109ºC, a boiling point of 394ºC and a density of 1.553 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
88-53-9
Jingsj CID
J-45048-6
Molecular Formula
C7H8ClNO3S
Molecular Weight
221.66100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point109ºC
Boiling Point394ºC
Density1.553 g/cm3
Exact Mass220.99100
PSA88.77000
LogP3.13930

Customs & Trade Information

HS Code2921430090
SummaryHS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Amino-5-chloro-4-methylbenzenesulfonic acid?

The CAS number of 2-Amino-5-chloro-4-methylbenzenesulfonic acid is 88-53-9.

What are the molecular formula and molecular weight of 2-Amino-5-chloro-4-methylbenzenesulfonic acid?

2-Amino-5-chloro-4-methylbenzenesulfonic acid has molecular formula C7H8ClNO3S and molecular weight 221.66100 g/mol.

What are the upstream and downstream products of 2-Amino-5-chloro-4-methylbenzenesulfonic acid?

For 2-Amino-5-chloro-4-methylbenzenesulfonic acid, Upstream Products: 4-Chloro-3-methylaniline; Downstream Products: 2-amino-5-chloro-4-ethylbenzenesulfonic acid, 4-Chloro-3-methylaniline, 3-aminotoluene-4-sulphonic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Amino-5-chloro-4-methylbenzenesulfonic acid (CAS 88-53-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45048-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.