7139-89-1

Basic information

• Product Name: 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID
• Synonyms: PARA-PHENYLENE-DI-AMINE-2,5-DISULPHONIC ACID;1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID;2,5-diamino-4-benzenedisulfonicacid;2,5-diaminobenzene-1,4-disulphonic acid;p-Phenylenediamine-2,5-disulfonic acid;4-Phenylenediamine-2,5-disulfonicacid;4-Phenylenediaminedisulfonicacid;2,5-Diamino-1,4-benzenedisulfonic acid
• CAS NO: 7139-89-1
• Molecular Formula: C6H8N2O6S2
• Molecular Weight: 268.27
• EINECS: 230-439-5
• Mol File: 7139-89-1.mol
• Article Data: 8

Chemical Properties

• Appearance: /
• Density: 1.922g/cm³
• Refractive Index: 1.712
• PKA: -1.91±0.50(Predicted)
• CAS DataBase Reference: 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID(7139-89-1)
• EPA Substance Registry System: 1,4-PHENYLENEDIAMINE-2,5-DISULFONIC ACID(7139-89-1)

Safety Data

• Hazardous Substances Data: 7139-89-1(Hazardous Substances Data)

Usage

General Description

1,4-Phenylenediamine-2,5-disulfonic acid, often abbreviated as PDSA, is a type of sulfonic acid that falls under the category of organic compounds. Organic compounds are known for comprising carbon, hydrogen, and oxygen atoms, typically in long chains or rings. This specific acid is made up of two phenylenediamine units, meaning it contains nitrogen and its molecular structure features a phenyl group, making it an aromatic amine. Its chemical formula is C6H6N2O6S2. Its applications in various industries are not commonly detailed, but like other sulfonic acids, it may be used in the manufacture of dyes, detergents, and surfactants. Due to its potentially hazardous nature, handling and usage of PDSA must comply with established safety guidelines.

InChI:InChI=1/C6H8N2O6S2/c7-3-1-5(15(9,10)11)4(8)2-6(3)16(12,13)14/h1-2H,7-8H2,(H,9,10,11)(H,12,13,14)

Relevant articles and documents

Mono- and bis-azo compounds containing 6-hydroxy-3-heterocyclic onium-pyridone-2-groupings coupled to diazo components containing diazine or triazine rings

Reactive dyes of the formula STR1 where n is 1 or 2, X is a six-membered halogen-containing nitrogen heterocycle, L1, depending on n, is fluorine, chlorine, C1 -C4 -alkoxy, phenoxy, C1 -C4 -alkyl, substituted or unsubstituted phenyl or a bridge member which has one or two hydroxysulfonyl groups, D is the radical of a diazo component of the aniline or naphthalene series which has at least one hydroxysulfonyl group, L2 is hydrogen or substituted or unsubstituted C1 -C8 -alkyl, L3 is the cationic radical of an aromatic heterocycle which is linked to the pyridone ring via a nitrogen atom, and L4 is hydrogen or C1 -C4 -alkyl, with the proviso that the number of hydroxysulfonyl groups in the molecule exceeds that of the cationic groups by at least one, are useful for dyeing and printing hydroxyl- or nitrogen-containing substrates.

Reactive disazo dyestuffs having a fluorocontaining reactive group and a sulphatoethylsulphone substituent

Dyestuffs of the formula STR1 wherein B=CH=CH2 or CH2 CH2 OSO3 H, u and v=H or SO3 H, with u=v, R=Cl, Br, C1 -C4 -alkyl, C1 -C4 -alkoxy, COOH, SO3 H, NHCOCH3, SO2 CH2 CH2 OSO3 H n=0, 1 or 2 STR2 These dyestuffs are outstandingly suitable for the dyeing and printing of materials containing hydroxyl groups or amide groups, such as cellulose, wool and polyamide, and give dyeings with good wet and light fastness properties.

Triazinyl reactive dyes containing additional fiber reactive groups bound through the sulfonylalkylaminoalkylamino bridge

The invention relates to novel useful reactive dyes of the formula I STR1 in which: F is a radical selected from the group consisting of metal-free or metal-containing monoazo or disazo dyes containing at least one --SO3 H group, anthraquinone dyes, sulfophthalocyanine dyes, formazan dyes, phenazine dyes, oxanine dyes and nitroaryl dyes, R is hydrogen, C1 -C4 alkyl which is unsubstituted or substituted with --COOH or --SO3 H, cyanoethyl, or hydroxyethyl, X is fluorine, chlorine, bromine, --SO3 H, phenylsulfonyl or C1 -C4 -alkylsulfonyl, P is 1 or 2 and A is a radical of the formula STR2 in which: the groups designated "alk" are independently of each other straight or branched polymethylene radicals having 2 to 6 carbon atoms, and Z is β-halogenoethyl, vinyl, β-sulfatoethyl, β-thiosulfatoethyl or βacetoxyethyl.