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
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About This Item
Linear Formula:
(H2N)2C6H3SO3H
CAS Number:
Molecular Weight:
188.20
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
201-832-9
Beilstein/REAXYS Number:
2970398
MDL number:
Assay:
≥97.0% (T)
Quality Level
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
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.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Polyaniline Derivative with External and Internal Doping via Electrochemical Copolymerization of Aniline and 2, 5-Diaminobenzenesulfonic Acid on IrO2-Coated Titanium Electrode.
Yang C-H and Wen T-C.
Journal of the Electrochemical Society, 141(10), 2624-2632 (1994)
Tzanko Tzanov et al.
Applied biochemistry and biotechnology, 111(1), 1-13 (2003-10-21)
This article reports on the dyeing of wool using an enzymatic system comprising laccase; dye precursor, 2,5-diaminobenzenesulfonic acid; and dye modifiers, catechol and resorcinol. Enzymatic dyeing was performed as a batchwise process at the temperature and pH of maximum enzyme
S Chaskes et al.
Mycopathologia, 74(3), 143-148 (1981-06-05)
A simple melanin assay using DL.DOPA as the substrate was developed to aid in the identification of Cryptococcus neoformans. The DL-DOPA drop test was simple and efficient. The best results (100% of the C. neoformans isolates were positive) occurred when
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 32776-50G | 04061832419190 |
| 32776-250G | 04061832419183 |