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2,5-Dimercapto-1,3,4-thiadiazole

2,5-二巯基-1,3,4-噻二唑

Also known as: Bismuththiol I, Bismuthiol I, 1,3,4-Thiadiazole-2,5-dithiol, 1,3,4-Thiadiazolidine-2,5-dithione, DMTD, Bismuthon I, Bismutiol I

2,5-Dimercapto-1,3,4-thiadiazole (CAS 1072-71-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H2N2S3 and a molecular weight of 150.246 g/mol. It is also known as Bismuththiol I, Bismuthiol I and 1,3,4-Thiadiazole-2,5-dithiol. Key properties include a melting point of 162 °C (dec.)(lit.), a boiling point of 259.6±23.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 110.8±22.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1072-71-5
Jingsj CID
J-1992835-7
Molecular Formula
C2H2N2S3
Chinese Name
2,5-二巯基-1,3,4-噻二唑
Molecular Weight
150.246 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point162 °C (dec.)(lit.)
Boiling Point259.6±23.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point110.8±22.6 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

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

The CAS number of 2,5-Dimercapto-1,3,4-thiadiazole is 1072-71-5.

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

2,5-Dimercapto-1,3,4-thiadiazole has molecular formula C2H2N2S3 and molecular weight 150.246 g/mol.

Is 2,5-Dimercapto-1,3,4-thiadiazole hazardous?

2,5-Dimercapto-1,3,4-thiadiazole has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2,5-Dimercapto-1,3,4-thiadiazole (CAS 1072-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992835-7 (accessed 2026-10-22).

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