CAS No 586-76-5 , 4-bromobenzoic acid

Title: p-Bromobenzoic Acid
CAS Registry Number: 586-76-5
Molecular Formula: C7H5BrO2
Molecular Weight: 201.02
Percent Composition: C 41.82%, H 2.51%, Br 39.75%, O 15.92%
Literature References: Prepd by oxidation of p-bromotoluene with potassium permanganate: Hale, Thorp, J. Am. Chem. Soc. 35, 269 (1913).
Properties: Needles from ether, leaflets from water or 90% alcohol. mp 251-253°. Slightly sol in hot water. Sol in alc, ether.
Melting point: mp 251-253°
 
Derivative Type: Methyl ester
Molecular Formula: C6H4BrCO2CH3
Molecular Weight: 215.04
Percent Composition: C 44.68%, H 3.28%, Br 37.16%, O 14.88%
Properties: Needles from ether or leaflets from dil alcohol, mp 81°. d 1.689. Sol in alc, ether.
Melting point: mp 81°
Density: d 1.689
 
Derivative Type: Ethyl ester
Molecular Formula: C6H4BrCO2C2H5
Molecular Weight: 229.07
Percent Composition: C 47.19%, H 3.96%, Br 34.88%, O 13.97%
Properties: Liquid; bp737.4 262°.
Boiling point: bp737.4 262°
 
Derivative Type: Phenyl ester
Molecular Formula: C13H9BrO2
Molecular Weight: 277.11
Percent Composition: C 56.35%, H 3.27%, Br 28.83%, O 11.55%
Properties: Scales, mp 117°. Sol in alc, ether, chloroform, CS2, benzene; less sol in petr ether.
Melting point: mp 117°
 
Use: For the detection of strontium; in org syntheses.