84-50-4

Basic information

• Product Name: ANTHRAQUINONE-2,6-DISULFONIC ACID, DISODIUM SALT, MIXTURE OF ISOMERS, TECH., 90
• Synonyms: 6-Anthracenedisulfonicacid,9,10-dihydro-9,10-dioxo-2;9,10-dihydro-9,10-dioxo-6-anthracenedisulfonicacid;anthraquinone-2,6-disulfonicacid,disodiumsalt,mixtureofisomers;ANTHRAQUINONE-2,6-DISULFONIC ACID, DISODIUM SALT, MIXTURE OF ISOMERS, TECH., 90;9,10-dioxoanthracene-2,6-disulphonic acid;9,10-dioxo-9,10,dihydroanthracene-2,6-disulfonic acid;Anthraquinone-2,6-disulfonic acid;Anthraquinone-2,6-disulfonic acid, disodium salt, mixture of isomers, tech., 90%
• CAS NO: 84-50-4
• Molecular Formula: C₁₄H₈O₈S₂
• Molecular Weight: 368.33852
• EINECS: 201-534-9
• Product Categories: Intermediates of Dyes and Pigments
• Mol File: 84-50-4.mol
• Article Data: 1

Chemical Properties

• Melting Point: 325°C
• Appearance: /solid
• Density: 1.800±0.06 g/cm3(Predicted)
• PKA: -1.85±0.20(Predicted)
• CAS DataBase Reference: ANTHRAQUINONE-2,6-DISULFONIC ACID, DISODIUM SALT, MIXTURE OF ISOMERS, TECH., 90(CAS DataBase Reference)
• NIST Chemistry Reference: ANTHRAQUINONE-2,6-DISULFONIC ACID, DISODIUM SALT, MIXTURE OF ISOMERS, TECH., 90(84-50-4)
• EPA Substance Registry System: ANTHRAQUINONE-2,6-DISULFONIC ACID, DISODIUM SALT, MIXTURE OF ISOMERS, TECH., 90(84-50-4)

Safety Data

• Safety Statements: S24/25:Avoid contact with skin and eyes.
• Hazardous Substances Data: 84-50-4(Hazardous Substances Data)

Usage

Chemical Properties

beige powder

Definition

ChEBI: A member of the class of anthraquinones that is 9,10-anthraquinone substituted at positions 2 and 6 by sulfo groups.

InChI:InChI=1/C14H8O8S2/c15-13-9-3-1-7(23(17,18)19)5-11(9)14(16)10-4-2-8(6-12(10)13)24(20,21)22/h1-6H,(H,17,18,19)(H,20,21,22)/p-2

Upstream product

• 85-52-9 2-Benzoylbenzoic acid 
• 84-65-1 9,10-phenanthrenequinone 
• 7664-93-9 sulfuric acid 
• 7446-11-9 sulfur trioxide 
• 82-49-5 1-anthraquinonesulfonic acid 
• 117-14-6 1,5-anthraquinone disulfonate 
• 82-48-4 1,8-anthraquinonedisulphonic acid 

Downstream Products

• 131-14-6 2,6-diamino-9,10-anthraquinone 
• 99-50-3 3,4-Dihydroxybenzoic acid 
• 99-06-9 3-Carboxyphenol 
• 99-96-7 4-hydroxy-benzoic acid 
• 61169-36-6 1,2,4,5,6,8-hexahydroxy-9,10-anthraquinone 
• 632-82-6 1,3,5,7-tetrahydroxy-9,10-anthracenedione 
• 75313-07-4 1,2,4,6-tetrahydroxy-anthraquinone 
• 605-40-3 2,6-dichloro-9,10-anthraquinone 
• 180593-07-1 6-chloro-9,10-dioxo-9,10-dihydro-anthracene-2-sulfonic acid 
• 85918-30-5 2,3,6-trihydroxyacetophenone 
• 84-60-6 anthraflavic acid 
• 82-29-1 1,2,6-trihydroxyanthraquinone 

Relevant articles and documents

Fourier transform EPR study and quantum chemical calculations of dihydrofuran radicals formed by triplet sensitized electron transfer in aqueous solution

The radicals formed by electron transfer from 2,3-dihydrofuran, 2-methyl-4,5-dihydrofuran and 2,3-dimethyl-4,5-dihydrofuran to the laser induced triplet state of anthraquinone-2,6-disulfonic acid were studied in aqueous solution by Fourier transform electron paramagnetic resonance (FT EPR) in the nanosecond time-scale. With 2,3-dimethyl-4,5-dihydrofuran and 2-methyl-4,5-dihydrofuran as electron donor the radical cations were observed directly, whereas with 2,3-dihydrofuran as electron donors the radicals observed are successor radicals of the radical cations. The assignment of the radical structures was done by simulation of the experimental EPR spectra and was supported by quantum chemical density functional theory (DFT) calculations. In the experiments with 2-methyl-4,5-dihydrofuran only one OH--adduct could be determined although other so far unknown radicals contribute to the measured spectra. With 2,3-dihydrofuran two OH--adduct radicals and the deprotonated radical cation were detected together with contributions from a dimer radical. The rate constants of the electron transfer to the anthraquinone-2,6-disulfonate triplet and of the formation of the successor radicals from the primary 2,3-dihydrofuran radical cation were determined, respectively. The hyperfine coupling constants calculated by quantum chemical DFT method agree quite well with the experimental one.