5-Phenyl-4-thiohydantoic acid, USAF EK-734A, U 7130, Glycine,N-(phenylthiocarbamoyl), Glycine, N-[(phenylamino)thioxomethyl]-, N-Phenylthioureidoacetic acid, N-Phenyl-N'-carboxymethylthiourea, (3-phenyl-thioureido)acetic acid, N-phenyl-N'-(carboxymethyl)thiocarbamide, 2-[(phenylcarbamothioyl)amino]acetic acid