1H-Benzotriazole-4-sulfonic acid

苯并三唑-4-磺酸

Also known as: 1H-Benzotriazole-4-sulfonic acid, 1H-Benzotriazole-7-sulfonic acid, 1H-benzo[d][1,2,3]triazole-4-sulfonic acid, 1H-benzo[d][1,2,3]triazole-7-sulfonic acid, Benzotriazole-4-sulfonic acid, Benzotriazole-4-sulphonic acid, Benzotriazol-4-sulfonsaeure, MFCD03452776

1H-Benzotriazole-4-sulfonic acid (CAS 26725-50-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O3S and a molecular weight of 199.18700 g/mol. It is also known as 1H-Benzotriazole-7-sulfonic acid, 1H-benzo[d][1,2,3]triazole-4-sulfonic acid and 1H-benzo[d][1,2,3]triazole-7-sulfonic acid. Key properties include a melting point of 285 °C (dec.)(lit.) and a density of 1.792g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

26725-50-8

Jingsj CID

J-1967822-5

Molecular Formula

C₆H₅N₃O₃S

Chinese Name

苯并三唑-4-磺酸

Molecular Weight

199.18700 g/mol

Category

Organic Acids

Last updated

8/21/2026