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

Also known as: 3-Amino-1,2,4-triazole-5-carboxylic acid hemihydrate, 3-Amino-1,2,4-triazole-5-carboxylic acid, 3-Amino-1,2,4-triazole-5-carboxylic acid hydrate, 3-Amino-5-carboxy-1H-1,2,4-triazole, 5-Amino-1H-1,2,4-triazole-3-carboxylic acid, 5-Amino-2H-1,2,4-triazole-3-carboxylic acid, 5-Amino-s-triazole-3-carboxylic acid, 5-Carboxy-2-amino-1,3,4-triazole, 1H-1,2,4-Triazole-3-carboxylic acid, 5-amino-, 4H-1,2,4-Triazole-3-carboxylic acid, 5-amino-, 5-Amino-4H-1,2,4-triazole-3-carboxylic acid, 2-Amino-5-carboxy-1,3,4-triazole

3-Amino-1H-1,2,4-triazole-5-carboxylic acid (CAS 3641-13-2) 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. Key properties include a melting point of 178-182°C, a boiling point of 562.4±33.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 293.9±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3641-13-2

Jingsj CID

J-1095694-2

Molecular Formula

C₃H₄N₄O₂

Molecular Weight

128.089 g/mol

Category

Organic Acids

Last updated

8/21/2026