英文别名N-Carbethoxy-4-piperidone; 1-Piperidinecarboxylic acid, 4-oxo-, ethyl ester; 1-Ethoxycarbonyl-4-piperidone; N-carboethoxy-4-piperidinone; N-Carbethoxypiperidone; N-Carbethoxy-4-piperidon; 4-oxo-piperidine-1-carboxylic acid ethyl ester; 1-Carbethoxy-4-piperidone; 4-Oxo-1-piperidinecarboxylic Acid Ethyl Ester; Loratadine impurity H; 1-ethoxycarbonyl-4-piperidinone; 1-carboethoxy-4-piperidone; carbethoxy-4-piperidone; N-ETHOXYCARBONYL-4-PIPERIDONE; N-Carbithoxy-4-Piperidone; N-CARBOETHOXY-4-PIPERIDONE; 4-Piperidone-N-carboxylic acid ethyl ester 
