3-Mercaptopyridine-4-carboxylic acid

3-巯基吡啶-4-羧酸

Also known as: 3-Mercaptoisonicotinic acid, 3-sulfanylpyridine-4-carboxylic acid, 4-Pyridinecarboxylic acid, 3-mercapto-, 3-mercaptoisonicotinic acid, 3-Mercaptopyridine-4-carboxylic acid

3-Mercaptopyridine-4-carboxylic acid (CAS 18103-75-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5NO2S and a molecular weight of 155.17400 g/mol. It is also known as 3-Mercaptoisonicotinic acid, 3-sulfanylpyridine-4-carboxylic acid and 4-Pyridinecarboxylic acid, 3-mercapto-. Key properties include a boiling point of 430.412ºC at 760 mmHg, a density of 1.439 g/cm3 and a flash point of 214.106ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18103-75-8
Jingsj CID
J-1494530-6
Molecular Formula
C6H5NO2S
Chinese Name
3-巯基吡啶-4-羧酸
Molecular Weight
155.17400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point430.412ºC at 760 mmHg
Density1.439 g/cm3
Flash Point214.106ºC

Frequently Asked Questions

What is the CAS number of 3-Mercaptopyridine-4-carboxylic acid?

The CAS number of 3-Mercaptopyridine-4-carboxylic acid is 18103-75-8.

What are the molecular formula and molecular weight of 3-Mercaptopyridine-4-carboxylic acid?

3-Mercaptopyridine-4-carboxylic acid has molecular formula C6H5NO2S and molecular weight 155.17400 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Mercaptopyridine-4-carboxylic acid (CAS 18103-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494530-6 (accessed 2026-10-22).

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