1H-1,2,4-Triazole-3-thiol

3-巯基-1,2,4-三氮唑

Also known as: 3-Mercapto-1,2,4-triazole, 1,2,4-Triazole-3-thiol, 1,2-Dihydro-3H-1,2,4-triazole-3-thione, 3-mercapto-1H-1,2,4-triazole, MERCAPTOTRIAZOL, MTZ, S-Triazole-3-thiol, 1H-1,2,4-Triazole-5-thiol, 2,4-dihydro-3H-1,2,4-triazole-3-thione

1H-1,2,4-Triazole-3-thiol (CAS 3179-31-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H3N3S and a molecular weight of 101.13 g/mol. It is also known as 3-Mercapto-1,2,4-triazole, 1,2,4-Triazole-3-thiol and 1,2-Dihydro-3H-1,2,4-triazole-3-thione. Key properties include a melting point of 221-224 °C(lit.), a boiling point of 275.8±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 120.6±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3179-31-5
Jingsj CID
J-46049-3
Molecular Formula
C2H3N3S
Chinese Name
3-巯基-1,2,4-三氮唑
Molecular Weight
101.13 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point221-224 °C(lit.)
Boiling Point275.8±23.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point120.6±22.6 °C

Frequently Asked Questions

What is the CAS number of 1H-1,2,4-Triazole-3-thiol?

The CAS number of 1H-1,2,4-Triazole-3-thiol is 3179-31-5.

What are the molecular formula and molecular weight of 1H-1,2,4-Triazole-3-thiol?

1H-1,2,4-Triazole-3-thiol has molecular formula C2H3N3S and molecular weight 101.13 g/mol.

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

Last updated:

How to cite: Jingsj. "1H-1,2,4-Triazole-3-thiol (CAS 3179-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46049-3 (accessed 2026-10-22).

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