2-Chloropyridine-3-sulfonic acid

2-氯吡啶-3-磺酸

Also known as: 2-Chloro-3-pyridinesulfonic acid, 3-Pyridinesulfonic acid, 2-chloro-, 2-Chloropyridine-3-sulphonic acid, 2-chloranylpyridine-3-sulfonic acid, 2-chloro-pyridine-3-sulfonic acid

2-Chloropyridine-3-sulfonic acid (CAS 6602-56-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4ClNO3S and a molecular weight of 193.60800 g/mol. It is also known as 2-Chloro-3-pyridinesulfonic acid, 3-Pyridinesulfonic acid, 2-chloro- and 2-Chloropyridine-3-sulphonic acid. Key properties include a melting point of 276-280℃ and a density of 1.649g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6602-56-8
Jingsj CID
J-895944-9
Molecular Formula
C5H4ClNO3S
Chinese Name
2-氯吡啶-3-磺酸
Molecular Weight
193.60800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point276-280℃
Density1.649g/cm3

Frequently Asked Questions

What is the CAS number of 2-Chloropyridine-3-sulfonic acid?

The CAS number of 2-Chloropyridine-3-sulfonic acid is 6602-56-8.

What are the molecular formula and molecular weight of 2-Chloropyridine-3-sulfonic acid?

2-Chloropyridine-3-sulfonic acid has molecular formula C5H4ClNO3S and molecular weight 193.60800 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloropyridine-3-sulfonic acid (CAS 6602-56-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-895944-9 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.