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2H-1,2,4-Triazole-3-carboxamide

Also known as: 1,2,4-Triazole-3-carboxamide, 1,2,4-Triazole-3-carboxylic acid amide, 1H-1,2,4-Triazole-3-carboxamide, 1H-1,2,4-Triazole-5-carboxamide, 3-Carbamoyl-1H-1,2,4-triazole, Ribavirin base, Ribavirin Impurity 4, Ribavirin Related Compound D, Triazole carboxamide, 1,2,4-Triazole-3-formamide, MFCD03990481, 1,2,4-TRIAZOLE-3-CARBOXYAMIDE, 3-methylformamide-1,2,4-triazone, 4-Triazole-3-carboxaMide

2H-1,2,4-Triazole-3-carboxamide (CAS 3641-08-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C3H4N4O and a molecular weight of 112.090 g/mol. Key properties include a melting point of 315 °C, a boiling point of 393.4±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 191.7±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3641-08-5
Jingsj CID
J-32126-6
Molecular Formula
C3H4N4O
Molecular Weight
112.090 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point315 °C
Boiling Point393.4±25.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point191.7±23.2 °C
Exact Mass112.038513
PSA84.66000
LogP-1.63
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.626

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 2H-1,2,4-Triazole-3-carboxamide?

The CAS number of 2H-1,2,4-Triazole-3-carboxamide is 3641-08-5.

What are the molecular formula and molecular weight of 2H-1,2,4-Triazole-3-carboxamide?

2H-1,2,4-Triazole-3-carboxamide has molecular formula C3H4N4O and molecular weight 112.090 g/mol.

What are the upstream and downstream products of 2H-1,2,4-Triazole-3-carboxamide?

For 2H-1,2,4-Triazole-3-carboxamide, Upstream Products: Methyl 1H-1,2,4-triazole-3-carboxylate, Ribavirin; Downstream Products: Ribavirin, 7-Methylguanine, Uracil.

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

Last updated:

How to cite: Jingsj. "2H-1,2,4-Triazole-3-carboxamide (CAS 3641-08-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32126-6 (accessed 2026-11-09).

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