37743-41-2

R 18936 Loperamide Impurity D Loperamide EP Impurity D Loperamide impurity-D(EP) 4-(4-Hydroxy-4-phenylpiperidin-1-yl Loperamide Impurity 4（Loperamide EP Impurity D） 1-Piperidinebutanamide, 4-hydroxy-N,N-dimethyl-α,α,4-triphenyl- 4-Hydroxy-N,N-dimethyl-alpha,alpha,4-triphenyl-1-piperidinebutanamide 4-(4-hydroxy-4-phenylpiperidin-1-yl)-N,N-dimethyl-2,2-diphenylbutanamide 4-(4-hydroxy-4-phenyl-piperidin-1-yl)-N,N-dimethyl-2,2-diphenyl-butyramide Loperamide impurity 3/Loperamide EP Impurity D/4-(4-hydroxy-4-phenylpiperidin-1-yl)-N,N-dimethyl-2,2-diphenylbutanamide