1,2,5-Thiadiazole-3-carboxylic acid

1,2,5-噻二唑-3-羧酸

Also known as: 1,2,5-Thiadiazol-3-carboxylic acid, 1,2,5-Thiadiazole-3-carboxylic acid, 2,1,3-Thiadiazole-4-carboxylic acid, 4-Carboxy-2,1,3-thiadiazole

1,2,5-Thiadiazole-3-carboxylic acid (CAS 13368-86-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H2N2O2S and a molecular weight of 130.12500 g/mol. It is also known as 1,2,5-Thiadiazol-3-carboxylic acid, 2,1,3-Thiadiazole-4-carboxylic acid and 4-Carboxy-2,1,3-thiadiazole. Key properties include a melting point of 89ºC, a boiling point of 292.8ºC at 760 mmHg, a density of 1.67g/cm3 and a flash point of 130.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13368-86-0
Jingsj CID
J-1524053-0
Molecular Formula
C3H2N2O2S
Chinese Name
1,2,5-噻二唑-3-羧酸
Molecular Weight
130.12500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point89ºC
Boiling Point292.8ºC at 760 mmHg
Density1.67g/cm3
Flash Point130.9ºC

Frequently Asked Questions

What is the CAS number of 1,2,5-Thiadiazole-3-carboxylic acid?

The CAS number of 1,2,5-Thiadiazole-3-carboxylic acid is 13368-86-0.

What are the molecular formula and molecular weight of 1,2,5-Thiadiazole-3-carboxylic acid?

1,2,5-Thiadiazole-3-carboxylic acid has molecular formula C3H2N2O2S and molecular weight 130.12500 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2,5-Thiadiazole-3-carboxylic acid (CAS 13368-86-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524053-0 (accessed 2026-10-22).

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