英文别名Oxybutynin Impurity 2; ethyl 2-cyclohexyl-2-hydroxy-2-phenylacetate; Ethyl α-CyclohexylMandelate; α-Cyclohexyl-α-hydroxy-benzeneacetic Acid Ethyl Ester; Oxybutynin Impurity 2 (Phenylcyclohexylglycolic Acid Ethyl Ester); Benzeneacetic acid, α-cyclohexyl-α-hydroxy-, ethyl ester; Oxybutynin Impurity 11