1-Ethyl-1H-1,2,4-triazole

1-乙基-1,2,4-三唑

Also known as: 1-ETHYL-1,2,4-TRIAZOLE, 1-Ethyl-1H-1,2,4-Triazole, 1H-1,2,4-Triazole, 1-ethyl-

1-Ethyl-1H-1,2,4-triazole (CAS 16778-70-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H7N3 and a molecular weight of 97.118 g/mol. It is also known as 1-ETHYL-1,2,4-TRIAZOLE, 1-Ethyl-1H-1,2,4-Triazole and 1H-1,2,4-Triazole, 1-ethyl-. Key properties include a boiling point of 188.1±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 67.6±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16778-70-4
Jingsj CID
J-1432655-6
Molecular Formula
C4H7N3
Chinese Name
1-乙基-1,2,4-三唑
Molecular Weight
97.118 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point188.1±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point67.6±22.6 °C

Frequently Asked Questions

What is the CAS number of 1-Ethyl-1H-1,2,4-triazole?

The CAS number of 1-Ethyl-1H-1,2,4-triazole is 16778-70-4.

What are the molecular formula and molecular weight of 1-Ethyl-1H-1,2,4-triazole?

1-Ethyl-1H-1,2,4-triazole has molecular formula C4H7N3 and molecular weight 97.118 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Ethyl-1H-1,2,4-triazole (CAS 16778-70-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1432655-6 (accessed 2026-10-24).

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