4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol

4-乙基-5-异丙基-4H-1,2,4-三唑-3-硫醇

Also known as: 3H-1,2,4-Triazole-3-thione, 4-ethyl-2,4-dihydro-5-(1-methylethyl)-, 4-Ethyl-5-isopropyl-3-mercapto-4H-triazol, 4-Ethyl-5-isopropyl-4H-[1,2,4]triazole-3-thiol, 4-ethyl-3-propan-2-yl-1H-1,2,4-triazole-5-thione, 4-ethyl-5-(propan-2-yl)-4H-1,2,4-triazole-3-thiol, 4-ethyl-5-isopropyl-2,4-dihydro-[1,2,4]triazole-3-thione

4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol (CAS 66921-11-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C7H13N3S and a molecular weight of 171.26300 g/mol. It is also known as 3H-1,2,4-Triazole-3-thione, 4-ethyl-2,4-dihydro-5-(1-methylethyl)-, 4-Ethyl-5-isopropyl-3-mercapto-4H-triazol and 4-Ethyl-5-isopropyl-4H-[1,2,4]triazole-3-thiol. Key properties include a boiling point of 208.7ºC at 760 mmHg, a density of 1.19g/cm3 and a flash point of 80ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66921-11-7
Jingsj CID
J-1018062-8
Molecular Formula
C7H13N3S
Chinese Name
4-乙基-5-异丙基-4H-1,2,4-三唑-3-硫醇
Molecular Weight
171.26300 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point208.7ºC at 760 mmHg
Density1.19g/cm3
Flash Point80ºC

Frequently Asked Questions

What is the CAS number of 4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol?

The CAS number of 4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol is 66921-11-7.

What are the molecular formula and molecular weight of 4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol?

4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol has molecular formula C7H13N3S and molecular weight 171.26300 g/mol.

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

Last updated:

How to cite: Jingsj. "4-ethyl-5-isopropyl-4H-1,2,4-triazole-3-thiol (CAS 66921-11-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1018062-8 (accessed 2026-10-23).

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