181637-02-5

Basic information

• Product Name: 4-Hydroxy-benzenesulfonic acid 2,4-dinitro-phenyl ester
• Synonyms: 4-Hydroxy-benzenesulfonic acid 2,4-dinitro-phenyl ester
• CAS NO: 181637-02-5
• Molecular Weight: 340.27
• Mol File: 181637-02-5.mol

Chemical Properties

• CAS DataBase Reference: 4-Hydroxy-benzenesulfonic acid 2,4-dinitro-phenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Hydroxy-benzenesulfonic acid 2,4-dinitro-phenyl ester(181637-02-5)
• EPA Substance Registry System: 4-Hydroxy-benzenesulfonic acid 2,4-dinitro-phenyl ester(181637-02-5)

Safety Data

• Hazardous Substances Data: 181637-02-5(Hazardous Substances Data)

Upstream product

• 108-95-2 phenol 
• 51-28-5 2,4-Dinitrophenol 
• 181637-22-9 Acetic acid 4-(2,4-dinitro-phenoxysulfonyl)-phenyl ester 
• 79119-26-9 4-acetoxybenzenesulfonyl chloride 

Downstream Products

• 51-28-5 2,4-Dinitrophenol 
• 98-67-9 p-hydoroxybenzenesulfonic acid 

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.