25759-76-6 4-(((Phenylamino)thioxomethyl)amino)butanoic acid 4-(3-Phenyl-2-thioureido)butyric acid BRN 2118584 BUTYRIC ACID, 4-(3-PHENYL-2-THIOUREIDO)- Butanoic acid, 4-(((phenylamino)thioxomethyl)amino)- (9CI) gamma-Phenylthioureidobutyric acid