Synonyms: Hyoscine Butylbromide Imp. B (EP), Hyoscine Hydrobromide Imp. D (EP), Ipratropium Bromide Imp. C (EP), Tropicamide Imp. C (EP),Atropine Imp. C (EP), Hyoscyamine Sulfate Imp. A (EP), Ipratropium Bromide USP Related Compound C, Ipratropium Bromide USP RC C, (2RS)-3-Hydroxy-2-phenylpropanoic Acid, dl-Tropic Acid, Tropic Acid, Hyoscyamine Sulphate Imp. A (EP), (+/-)-alpha-(Hydroxymethyl)benzeneacetic acid, (+/-)-2-Phenyl-3-hydroxypropionic acid, (+/-)-3-Hydroxy-2-phenylpropionic acid, (+/-)-Tropic acid, 2-Phenyl-3-hydroxypropanoic acid, 2-Phenyl-3-hydroxypropionic acid, 2-Phenylhydracrylic acid, 3-Hydroxy-2-phenylpropionic acid, DL-Tropic acid, NSC 20990, alpha-(Hydroxymethyl)benzeneacetic acid, Ipratropium Related Compound C, Tropicamide Related Compound C, Atropine Impurity C, Hyoscine Butylbromide Impurity B, Hyoscine Hydrobromide Impurity D, Hyoscyamine Sulfate Impurity A, Ipratropium Bromide Impurity C, Tropicamide Impurity C, Hyoscyamine Impurity A, Ipratropium Impurity C, Hyoscyamine Sulfate Impurity A