149-46-2

Basic information

• Product Name: 4,5-dihydroxybenzene-1,3-disulphonic acid
• Synonyms: 4,5-dihydroxybenzene-1,3-disulphonic acid;1,2-Dihydroxy-3,5-benzenedisulfonic acid;1,2-Dihydroxybenzene-3,5-disulfonic acid;4,5-Dihydroxybenzene-1,3-disulfonic acid;Pyrocatechol-3,5-disulfonic acid;1,3-Benzenedisulfonicacid, 4,5-dihydroxy-
• CAS NO: 149-46-2
• Molecular Formula: C₆H₆O₈S₂
• Molecular Weight: 270.23704
• EINECS: 205-742-0
• Mol File: 149-46-2.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 98°C
• Flash Point: °C
• Appearance: /
• Density: 1.649 (estimate)
• Refractive Index: 1.6000 (estimate)
• PKA: pK3:7.66(+2);pK4:12.6(-3) (25°C)
• CAS DataBase Reference: 4,5-dihydroxybenzene-1,3-disulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-dihydroxybenzene-1,3-disulphonic acid(149-46-2)
• EPA Substance Registry System: 4,5-dihydroxybenzene-1,3-disulphonic acid(149-46-2)

Safety Data

• Hazardous Substances Data: 149-46-2(Hazardous Substances Data)

Usage

General Description

4,5-dihydroxybenzene-1,3-disulphonic acid, also known as 1,3-Dihydroxybenzene-4,5-disulfonic acid, is a chemical compound with the molecular formula C6H6O8S2. It is a disulphonic acid derivative of hydroquinone, and is commonly used as an analytical reagent for the determination of copper and hydrogen peroxide. It is also used in the production of dyes and pigments. 4,5-dihydroxybenzene-1,3-disulphonic acid is a colorless solid and is highly water-soluble. It is primarily used in the field of research and development, and in the manufacture of various industrial products. It is important to handle this chemical with care and according to safe laboratory practices due to its potential health hazards.

InChI:InChI=1/C6H6O8S2/c7-4-1-3(15(9,10)11)2-5(6(4)8)16(12,13)14/h1-2,7-8H,(H,9,10,11)(H,12,13,14)

Upstream product

• 7134-09-0 3,4-dihydroxybenzenesulfonic acid 
• 120161-24-2 5-chloro-4-hydroxy-benzene-1,3-disulfonic acid 
• 121208-92-2 5-bromo-4-hydroxy-benzene-1,3-disulfonic acid 
• 120-80-9 benzene-1,2-diol 
• 35857-70-6 2,3-dihydroxybenzene-1-sulfonic acid 
• 7790-94-5 chlorosulfonic acid 
• 7664-93-9 sulfuric acid 
• 5930-44-9 phenol-2,4,6-trisulfonic acid 
• 149-45-1 tiron 

Downstream Products

• 120-80-9 benzene-1,2-diol 
• 47836-89-5 ferroin 
• 1120368-95-7 iron(II)tris(5,6-Me₂-phen)⁽²⁺⁾ 
• 15226-32-1 tris(5-methyl-1,10-phenanthroline)iron(II) 
• 1379458-90-8 C₆H₄O₉S₂ 

Relevant articles and documents

Novel Full Hydrogenation Reaction of Methyl Esters of Palm Kernel and Sunflower Oils Into Methyl Stearate Catalyzed by Rhodium, Ruthenium and Nickel Complexes of Bidentate Hexasulfonated o-Phenylendiphosphite Ligands

High catalytic activities (TOF = 8680?h?1) have been achieved by novel rhodium catalysts modified with the chelating sulfonated phosphite ligand hexasulfonated o-phenylendiphosphite in the hydrogenation reaction of renewable methyl esters of sunflower oil under mild reaction conditions and a low rhodium concentration of 50?ppm in methanol. Graphical Abstract: [Figure not available: see fulltext.].