1-Phenylbutyric acid 1716-12-7 1821-12-1 4-PHENYLBUTYRIC ACID 4-Phenylbutanoic acid AI3-12065 Benzenebutanoic acid Benzenebutyric acid Butyric acid, 4-phenyl- (8CI) EINECS 217-341-8 NSC 295 gamma-Phenylbutyric acid omega-Phenylbutanoic acid