Glipizide BP Impurity B ; cyclohexylamine (EP) ; Cyclohexanamine (as per EP); cyclohexanamine; 1-Aminocyclohexane; 1-Cyclohexylamine; Aminocyclohexane; Aminohexahydrobenzene; Hexahydrobenzenamine; Biodur E 1; HY; Hexahydroaniline; Monocyclohexylamine;