32776

2,5-Diaminobenzenesulfonic acid

≥97.0% (T)

• Synonym(s): 1,4-Diamino-2-benzenesulfonic acid, 1,4-Phenylenediamine-2-sulfonic acid, 1,4-Phenylenediamine-3-sulfonic acid, 2-Sulfo-1,4-phenylenediamine, p-Phenylenediamine-2-sulfonic acid
• Linear Formula: (H₂N)₂C₆H₃SO₃H
• CAS Number: 88-45-9
• Molecular Weight: 188.20
• Beilstein/REAXYS Number: 2970398
• EC Number: 201-832-9
• MDL number: MFCD00007904
• UNSPSC Code: 12352100
• PubChem Substance ID: 57648717
• NACRES: NA.22

Properties

• Quality Level: 200
• assay: ≥97.0% (T)
• mp: 298-300 °C (dec.) (lit.)
• functional group: sulfonic acid
• SMILES string: Nc1ccc(N)c(c1)S(O)(=O)=O
• InChI: 1S/C6H8N2O3S/c7-4-1-2-5(8)6(3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
• InChI key: HEAHMJLHQCESBZ-UHFFFAOYSA-N

Description

General description

2,5-Diaminobenzenesulfonic acid is a dye precursor. Electrochemical copolymerization of 2,5-diaminobenzensulfonic acid and aniline by cyclic voltammetry on IrO₂ coated titanium electrodes was reported.

Application

2,5-Diaminobenzenesulfonic acid was used in preparation of a polymeric dye, required for laccase-mediated dyeing of cotton.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H314
• pcodes: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges