2H-Tetrazole-2-acetic acid

Also known as: 2-(2H-Tetrazol-2-yl)acetic acid, 2-(tetrazol-2-yl)acetic acid, 2-Tetrazolylacetic Acid, 2H-Tetrazol-2-acetic acid, 2H-tetrazol-2-ylacetic acid, Cefazolin Impurity 41, Cefazolin Impurity 42, tetrazol-2-yl-acetic acid

2H-Tetrazole-2-acetic acid (CAS 21743-64-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H4N4O2 and a molecular weight of 128.08900 g/mol. Key properties include a boiling point of 381.1ºC at 760mmHg, a density of 1.78g/cm3 and a flash point of 184.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21743-64-6
Jingsj CID: J-1401601-4
Molecular Formula: C₃H₄N₄O₂
Molecular Weight: 128.08900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	381.1ºC at 760mmHg
Density	1.78g/cm3
Flash Point	184.3ºC
Exact Mass	128.03300
PSA	80.90000
Vapor Pressure	1.73E-06mmHg at 25°C
Refractive Index	1.732

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 2H-Tetrazole-2-acetic acid?

The CAS number of 2H-Tetrazole-2-acetic acid is 21743-64-6.

What are the molecular formula and molecular weight of 2H-Tetrazole-2-acetic acid?

2H-Tetrazole-2-acetic acid has molecular formula C3H4N4O2 and molecular weight 128.08900 g/mol.

What are the upstream and downstream products of 2H-Tetrazole-2-acetic acid?

For 2H-Tetrazole-2-acetic acid, Upstream Products: 1H-Tetrazole, Ethyl bromoacetate.

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. "2H-Tetrazole-2-acetic acid (CAS 21743-64-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401601-4 (accessed 2026-11-09).

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