21886-87-3

Basic information

• Product Name: Benzenesulfonic acid, 3,5-dichloro-4-hydroxy-, monosodium salt
• CAS NO: 21886-87-3
• Molecular Formula: C6H4Cl2O4S.Na
• Mol File: 21886-87-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 3,5-dichloro-4-hydroxy-, monosodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 3,5-dichloro-4-hydroxy-, monosodium salt(21886-87-3)
• EPA Substance Registry System: Benzenesulfonic acid, 3,5-dichloro-4-hydroxy-, monosodium salt(21886-87-3)

Safety Data

• Hazardous Substances Data: 21886-87-3(Hazardous Substances Data)

Upstream product

• 87-65-0 2,6-Dichlorophenol 
• 13432-81-0 3,5-dichloro-4-hydroxybenzene-1-sulfonyl chloride 

Relevant articles and documents

Structure-reactivity correlations in the dissociative hydrolysis of 2′,4′-dinitrophenyl 4-hydroxy-X-benzenesulfonates

The hydrolysis reactions of several title esters in water at 60°C follow the rate law kobs = (ka + kb[OH-])/(1 + αH/Ka), where Ka is the ionization constant of the hydroxy group of the ester and kb is the second-order rate constant for the SN2(S) attack of hydroxide ion on the ionized ester. Hammett and Br?nsted correlations are consistent with a previous proposal that the mechanism related to ka is dissociative. An unusual relationship between ka values and redox equilibrium constants for substituted quinones is found to hold: this finding further supports the dissociative nature of the pathway related to ka.