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5-Amino-1,3,4-thiadiazole-2-thiol

2-氨基-5-巯基-1,3,4-噻二唑

Also known as: 2-Amino-5-mercapto-1,3,4-thiadiazole, 5-Amino-2-mercapto-1,3,4-thiadiazole, 1,3,4-Thiadiazole-2-thiol, 5-amino-, 5-Amino-1,3,4-thiadiazole-2(3H)-thione, 2-Amino-5-sulfanyl-1,3,4-thiadiazole, AMTD, NSC 21402

5-Amino-1,3,4-thiadiazole-2-thiol (CAS 2349-67-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H3N3S2 and a molecular weight of 133.20 g/mol. It is also known as 2-Amino-5-mercapto-1,3,4-thiadiazole, 5-Amino-2-mercapto-1,3,4-thiadiazole and 1,3,4-Thiadiazole-2-thiol, 5-amino-. Key properties include a melting point of 235 °C (dec.)(lit.), a boiling point of 242.3±23.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 100.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2349-67-9
Jingsj CID
J-826638-3
Molecular Formula
C2H3N3S2
Chinese Name
2-氨基-5-巯基-1,3,4-噻二唑
Molecular Weight
133.20 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point235 °C (dec.)(lit.)
Boiling Point242.3±23.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point100.3±22.6 °C

Frequently Asked Questions

What is the CAS number of 5-Amino-1,3,4-thiadiazole-2-thiol?

The CAS number of 5-Amino-1,3,4-thiadiazole-2-thiol is 2349-67-9.

What are the molecular formula and molecular weight of 5-Amino-1,3,4-thiadiazole-2-thiol?

5-Amino-1,3,4-thiadiazole-2-thiol has molecular formula C2H3N3S2 and molecular weight 133.20 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Amino-1,3,4-thiadiazole-2-thiol (CAS 2349-67-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-826638-3 (accessed 2026-10-23).

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