Thiorphan76721-89-6100 % similar Phenylacetylglycine500-98-150 % similar Benzylsuccinic acid36092-42-949 % similar (2S)-2-(Phenylmethyl)butanedioic acid3972-36-949 % similar Benzylsuccinic acid884-33-349 % similar Benzyloxycarbonylglycine1138-80-347 % similar Alvimopan156053-89-345 % similar Methenamine hippurate5714-73-845 % similar β-Aminobenzenebutanoic acid15099-85-144 % similar Racecadotril81110-73-844 % similar Alvimopan dihydrate170098-38-143 % similar Tiopronin1953-02-242 % similar L-Tryptophanylglycine7360-09-042 % similar L-Aspartyl-L-phenylalanine13433-09-542 % similar (S)-3-Amino-4-phenylbutyric acid hydrochloride138165-77-242 % similar Phenylacetic acid103-82-241 % similar Salicyluric acid487-54-739 % similar Benzenepentanoic acid2270-20-439 % similar Benzylmalonic acid616-75-139 % similar Aspartame22839-47-038 % similar