EPY0000743
Ropivacaine impurity G - (+)-(2R)-N-(2,6-dimethylphenyl)-1-propylpiperidine-2-carboxamide ((R)-ropivacaine)
EPY0000738
Flavoxate impurity B - ethyl 3-methyl-4-oxo-2-phenyl-4H-1-benzopyran-8-carboxylate
EPY0000737
Flavoxate impurity A - 3-methyl-4-oxo-2-phenyl-4H-1-benzopyran-8-carboxylic acid