162109-20-8

Basic information

• Product Name: 4-Bromonaphthalene-1-sulfonic acid
• Synonyms: 4-Bromonaphthalene-1-sulfonic acid
• CAS NO: 162109-20-8
• Molecular Formula: C₁₀H₇BrO₃S
• Molecular Weight: 287.12978
• Mol File: 162109-20-8.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-Bromonaphthalene-1-sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Bromonaphthalene-1-sulfonic acid(162109-20-8)
• EPA Substance Registry System: 4-Bromonaphthalene-1-sulfonic acid(162109-20-8)

Safety Data

• Hazardous Substances Data: 162109-20-8(Hazardous Substances Data)

Upstream product

• 84-86-6 4-amino-1-naphthalenesufonic acid 
• 90-11-9 1-Bromonaphthalene 
• 7664-93-9 sulfuric acid 
• 63279-36-7 4-bromonaphthalene-1-sulfonyl chloride 

Downstream Products

• 513-35-9 2-methyl-but-2-ene 
• 115-11-7 isobutene 
• 922-61-2 3-methyl-2-pentene 
• 816-79-5 3-ethyl-2-pentene 
• 563-79-1 2,3-Dimethyl-2-butene 
• 558-37-2 tert-butylethylene 
• 563-78-0 2,3-Dimethyl-1-butene 
• 84-87-7 1-hydroxy-4-naphthalenesulfonate 
• 84-86-6 4-amino-1-naphthalenesufonic acid 
• 83-53-4 1,4-dibromonaphthalene 
• 91-20-3 naphthalene 
• 90766-48-6 4-bromonaphthalene-1-sulfonamide 
• 63279-36-7 4-bromonaphthalene-1-sulfonyl chloride 
• 88-99-3 benzene-1,2-dicarboxylic acid 

Relevant articles and documents

Detection of nonderivatized peptides in capillary electrophoresis using quenched phosphorescence

A capillary electrophoresis detection technique for (small) peptides is presented, i.e. quenched phosphorescence, a method that is generally applicable and does not require chemical derivatization. For this purpose, a novel phosphorophore, 1-bromo-4-naphthalenesulfonic acid (BrNS), was synthesized. BrNS has sufficient water solubility and provides strong phosphorescence at room temperature over a wide pH range. The detection is based on the dynamic quenching of the BrNS phosphorescence background signal by electron transfer from the amino group of the peptides at pH 9.5-10. For the di- and tripeptides Val-Tyr-Val, Val-Gly-Gly, Ala-Ser, Gly-Asn, Gly-Ala, and Gly-Tyr, detection limits in the range of 5-20 μg/L were obtained. The novel technique is even a good alternative for the (limited) group of peptides containing tyrosine and, thus, exhibiting native fluorescence as well as strong UV absorption: using Gly-Tyr, Val-Tyr-Val, methionine enkephalin, and human angiotensin II as test compounds, quenched phosphorescence detection was found to compare favorably with absorption detection at 190- and 266-nm laser-induced fluorescence detection, as performed with a recently developed, small-size, quadrupled Nd:YAG laser.

Linear Free Energy Relationship in Naphthalene System: Kinetics of Hydrolysis of 4-Substituted 1-Naphthalenesulphonyl Chlorides

The kinetics of hydrolysis of several 4-substituted 1-naphthalenesulphonyl chlorides have been studied in aqueous acetone at three temperatures.The reaction is first order in sulphonyl chloride.Presence of electron-withdrawing substituents in the naphthyl ring enhances the rate while that of opposite ones retards it.The small ρ-values obtained in the correlation analysis using the Hammett and dual substituent parameter equations are consistent with either an SN2 or an SAN mechanism.