Ethyl 1H-1,2,3-triazole-4-carboxylate

Also known as: Ethyl 1H-1,2,3-triazole-5-carboxylate, 1H-1,2,3-Triazole-5-carboxylic acid, ethyl ester, ethyl 1H-1,2,3-triazole-4-carboxylate

Ethyl 1H-1,2,3-triazole-4-carboxylate (CAS 40594-98-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O2 and a molecular weight of 141.128 g/mol. Key properties include a boiling point of 284.7±13.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 126.0±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 40594-98-7
Jingsj CID: J-1087908-0
Molecular Formula: C₅H₇N₃O₂
Molecular Weight: 141.128 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	284.7±13.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	126.0±19.8 °C
Exact Mass	141.053833
PSA	67.87000
LogP	0.74
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.525

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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 Ethyl 1H-1,2,3-triazole-4-carboxylate?

The CAS number of Ethyl 1H-1,2,3-triazole-4-carboxylate is 40594-98-7.

What are the molecular formula and molecular weight of Ethyl 1H-1,2,3-triazole-4-carboxylate?

Ethyl 1H-1,2,3-triazole-4-carboxylate has molecular formula C5H7N3O2 and molecular weight 141.128 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl 1H-1,2,3-triazole-4-carboxylate (CAS 40594-98-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1087908-0 (accessed 2026-11-09).

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