3-Amino-1,2,4-triazole-5-carboxylic acid hydrate

3-氨基-1,2,4-三唑-5-羧酸水合物

Also known as: 1H-1,2,4-Triazole-3-carboxylic acid, 5-amino-, monohydrate (9CI), 1H-1,2,4-Triazole-5-carboxylic acid, 3-amino-, hydrate (1:1), 3-Amino-1H-1,2,4-triazole-5-carboxylic acid hydrate (1:1), 3-Amino-5-carboxy-1H-1,2,4-triazole hydrate, 3-amino-1H-1,2,4-triazole-5-carboxylic acid hydrate

3-Amino-1,2,4-triazole-5-carboxylic acid hydrate (CAS 304655-78-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H6N4O3 and a molecular weight of 146.105 g/mol. It is also known as 1H-1,2,4-Triazole-3-carboxylic acid, 5-amino-, monohydrate (9CI), 1H-1,2,4-Triazole-5-carboxylic acid, 3-amino-, hydrate (1:1) and 3-Amino-1H-1,2,4-triazole-5-carboxylic acid hydrate (1:1). Key properties include a melting point of 182ºC, a boiling point of 666.3ºC at 760mmHg and a flash point of 356.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
304655-78-5
Jingsj CID
J-6403-3
Molecular Formula
C3H6N4O3
Chinese Name
3-氨基-1,2,4-三唑-5-羧酸水合物
Molecular Weight
146.105 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point182ºC
Boiling Point666.3ºC at 760mmHg
Flash Point356.8ºC

Frequently Asked Questions

What is the CAS number of 3-Amino-1,2,4-triazole-5-carboxylic acid hydrate?

The CAS number of 3-Amino-1,2,4-triazole-5-carboxylic acid hydrate is 304655-78-5.

What are the molecular formula and molecular weight of 3-Amino-1,2,4-triazole-5-carboxylic acid hydrate?

3-Amino-1,2,4-triazole-5-carboxylic acid hydrate has molecular formula C3H6N4O3 and molecular weight 146.105 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Amino-1,2,4-triazole-5-carboxylic acid hydrate (CAS 304655-78-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6403-3 (accessed 2026-10-23).

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