4-[(2,4-Diaminophenyl)azo]benzenesulfonamide

磺胺米柯定

Also known as: Prontosil, Prontosil rubrum, Prontosil flavum, Sulfamidochrysoidine, Parazol, Relbazon, Rubiazol I, Pronzin rubrum, 4-(2,4-Diaminophenyl)azobenzenesulfonamide, 4-[(2,4-Diaminophenyl)diazenyl]benzenesulfonamide, p-[(2,4-Diaminophenyl)azo]benzenesulfonamide, p-[(2,4-Diaminophenyl)azo]benzenesulphonamide, Aseptil rojo, 2',4'-Diamino-azobenzol-sulfonsaeure-(4)-amid, 4'-sulfamyl-2,4-diaminoazobenzene, 4-(2,4-Diamino-phenylazo)-benzolsulfonsaeure-amid, 4-(2,4-Diamino-phenylazo)-benzenesulfonic acid amide, 4-(2,4-Diaminophenyl)diazenylbenzenesulfonamide, 4-[(2,4-Diaminophenyl)azo]-benzenesulfonamide

4-[(2,4-Diaminophenyl)azo]benzenesulfonamide (CAS 103-12-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H13N5O2S and a molecular weight of 291.32900 g/mol. It is also known as Prontosil, Prontosil rubrum and Prontosil flavum. Key properties include a melting point of 249.5°C, a boiling point of 601.2ºC at 760mmHg, a density of 1.54g/cm3 and a flash point of 317.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

103-12-8

Jingsj CID

J-1990459-7

Molecular Formula

C₁₂H₁₃N₅O₂S

Chinese Name

磺胺米柯定

Molecular Weight

291.32900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026