1H-Tetrazole-1-acetic acid

四氮唑乙酸

Also known as: 1H-Tetrazol-1-ylacetic acid, 2-(1H-1,2,3,4-Tetrazol-1-yl)acetic acid, 2-(1H-Tetrazol-1-yl)acetic acid, Tetrazol-1-ylacetic acid, Tetrazol-1-yl-acetic acid, Cefazolin Impurity 12, MFCD00038813, EINECS 244-551-7

1H-Tetrazole-1-acetic acid (CAS 21732-17-2) 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 128.089 g/mol. It is also known as 1H-Tetrazol-1-ylacetic acid, 2-(1H-1,2,3,4-Tetrazol-1-yl)acetic acid and 2-(1H-Tetrazol-1-yl)acetic acid. Key properties include a melting point of 127-129°C, a boiling point of 381.1±44.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 184.3±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21732-17-2
Jingsj CID
J-1990741-1
Molecular Formula
C3H4N4O2
Chinese Name
四氮唑乙酸
Molecular Weight
128.089 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point127-129°C
Boiling Point381.1±44.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point184.3±28.4 °C

Frequently Asked Questions

What is the CAS number of 1H-Tetrazole-1-acetic acid?

The CAS number of 1H-Tetrazole-1-acetic acid is 21732-17-2.

What are the molecular formula and molecular weight of 1H-Tetrazole-1-acetic acid?

1H-Tetrazole-1-acetic acid has molecular formula C3H4N4O2 and molecular weight 128.089 g/mol.

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

Last updated:

How to cite: Jingsj. "1H-Tetrazole-1-acetic acid (CAS 21732-17-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990741-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.