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1-Vinyl-1,2,4-triazole

Also known as: 1-ethenyl-1,2,4-triazole, 1H-1,2,4-Triazole, 1-ethenyl-, N-vinyl-1,2,4-triazole, 1-vinyl-1H-1,2,4-triazole, 1-vinyltriazole

1-Vinyl-1,2,4-triazole (CAS 2764-83-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H5N3 and a molecular weight of 95.10260 g/mol. Key properties include a boiling point of 188.4ºC at 760 mmHg, a density of 1.099 g/mL at 20ºC(lit.) and a flash point of 67.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2764-83-2
Jingsj CID
J-944777-2
Molecular Formula
C4H5N3
Molecular Weight
95.10260 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point188.4ºC at 760 mmHg
Density1.099 g/mL at 20ºC(lit.)
Flash Point67.7ºC
Exact Mass95.04830
PSA30.71000
LogP0.37860
Vapor Pressure0.601mmHg at 25°C
Refractive Indexn20/D 1.511

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

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

The CAS number of 1-Vinyl-1,2,4-triazole is 2764-83-2.

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

1-Vinyl-1,2,4-triazole has molecular formula C4H5N3 and molecular weight 95.10260 g/mol.

What are the upstream and downstream products of 1-Vinyl-1,2,4-triazole?

For 1-Vinyl-1,2,4-triazole, Upstream Products: 1H-1,2,4-triazole, vinyl acetate, 1,2-Dibromoethane; Downstream Products: 1-Ethyl-1H-1,2,4-triazole.

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

Last updated:

How to cite: Jingsj. "1-Vinyl-1,2,4-triazole (CAS 2764-83-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-944777-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.