Title: Hippuric Acid
CAS Registry Number: 495-69-2
CAS Name: N-Benzoylglycine
Additional Names: benzoylaminoacetic acid; benzamidoacetic acid
Molecular Formula: C9H9NO3
Molecular Weight: 179.17
Percent Composition: C 60.33%, H 5.06%, N 7.82%, O 26.79%
Line Formula: C6H5CONHCH2COOH
Literature References: Present in the urine of herbivorous animals; also in smaller amounts in human urine. Prepd from benzoyl chloride and glycine in NaOH soln: Ingersoll, Babcock, Org. Synth. coll. vol. II, 328 (1943).
Properties: Crystals. mp 187-188°. One gram dissolves in about 250 ml cold water, 1000 ml chloroform, 400 ml ether, 60 ml amyl alcohol; slightly sol in cold, freely in hot alcohol or hot water; also sol in aq soln of sodium phosphate. Practically insol in benzene, carbon disulfide, petr ether.
Melting point: mp 187-188°
Derivative Type: Ammonium salt
Molecular Formula: NH4C9H8NO3
Molecular Weight: 196.20
Percent Composition: N 14.28%, H 6.16%, C 55.09%, O 24.46%
Properties: Crystals. Freely sol in water; sol in alcohol.
Derivative Type: Potassium salt monohydrate
Molecular Formula: KC9H10NO4.H2O
Molecular Weight: 253.29
Percent Composition: K 15.44%, C 42.68%, H 4.78%, N 5.53%, O 31.58%
Properties: Cryst powder. Very sol in water; sol in alcohol.
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