2-(1H-1,2,4-triazol-1-yl)acetic acid

Also known as: 1,2,4-triazol-1-ylacetic acid, 1H-1,2,4-triazole-1-acetic acid, 2-(1,2,4-triazol-1-yl)acetic acid

2-(1H-1,2,4-triazol-1-yl)acetic acid (CAS 28711-29-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O2 and a molecular weight of 127.10100 g/mol. Key properties include a boiling point of 376.9ºC at 760 mmHg, a density of 1.53 g/cm3 and a flash point of 181.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 28711-29-7
Jingsj CID: J-1308378-8
Molecular Formula: C₄H₅N₃O₂
Molecular Weight: 127.10100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	376.9ºC at 760 mmHg
Density	1.53 g/cm3
Flash Point	181.7ºC
Exact Mass	127.03800
PSA	68.01000
Vapor Pressure	2.38E-06mmHg at 25°C
Refractive Index	1.648

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 2-(1H-1,2,4-triazol-1-yl)acetic acid?

The CAS number of 2-(1H-1,2,4-triazol-1-yl)acetic acid is 28711-29-7.

What are the molecular formula and molecular weight of 2-(1H-1,2,4-triazol-1-yl)acetic acid?

2-(1H-1,2,4-triazol-1-yl)acetic acid has molecular formula C4H5N3O2 and molecular weight 127.10100 g/mol.

What are the upstream and downstream products of 2-(1H-1,2,4-triazol-1-yl)acetic acid?

For 2-(1H-1,2,4-triazol-1-yl)acetic acid, Upstream Products: Ethyl 2-(1H-1,2,4-triazol-1-yl)acetate, 1H-1,2,4-triazole, Chloroacetic acid; Downstream Products: 2-(1H-1,2,4-triazol-1-ylmethyl)-1H-benzimidazole, Ethyl 2-(1H-1,2,4-triazol-1-yl)acetate.

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. "2-(1H-1,2,4-triazol-1-yl)acetic acid (CAS 28711-29-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308378-8 (accessed 2026-11-09).

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