Amorolfine impurities: CAS No: -78613-39-5 Chemical name: -Amorlfine EP impurity A-(2RS, 6SR)-4-[(2RS)-3-[4-(1, 1-dimethylpropyl) phenyl]-2-methylpropyl]-2, 6- dimethyl morpholine-4-oxide CAS No:-78613-37-3 Chemical name:- (2RS, 6SR)-4-[(2RS)-2-methyl-3-phenylpropyl]-2, 6-dimethylmorpholine. EP impurity C, Amorolfine EP impurity D: Chemical name:- (2RS, 6SR)-4-[(2RS)-3-[4-(1, 1-dimethylethyl)phenyl]-2-methylpropyl]-2, 6-dimethylmorpholine. Amorolfine EP impurity E: CAS No:-78613-38-4 Chemical name:- Mixture of (2RS, 6RS)-4-[(2R)-3-[4-(1, 1-dimethylpropyl)phenyl]-2-methylpropyl] -2, 6-dimethyl morpholine and (2RS, 6RS)-4-[(2S)- 3-[4-(1, 1-dimethylpropyl)phenyl]-2-methyl propyl]-2, 6-dimethyl morpholine. Amorolfine impurity F: CAS No:- Chemical name: -1-[4-(1, 1-dimethylpropyl) phenyl] propan-1-one. Amorolfine impurity G Chemical name: - (2RS)-3-[(2RS, 6SR)-2, 6-dimethylmorpholin-4-yl]-1-[4-(1, 1-dimethylpropyl) phenyl]-2-methylpropan-1-one. Amorolfine EP impurity H: Chemical name: 2-[(2RS)-3-[(2RS, 6SR)-2, 6-dimethylmorpholin-4-yl]-2-methylpropyl]-5-(1, 1-dimethylpropyl)phenol. Amorlfine impurity I: CAS No:-67468-13-7 Chemical name: (2RS, 6SR)-4-[(2RS)-3-[4-(1, 2-dimethylpropyl)phenyl]-2-methylpropyl]-2, 6-dimethylmorpholine. Amorolfine impurity J Chemical name: (2RS, 6SR)-4-[(2RS)-3-[3-(1, 1-dimethylpropyl)phenyl]-2-methylpropyl]-2, 6-dimethylmorpholine. Amorolfine impurity K Chemical name: (2RS, 6SR)-4-[(2RS)-3-[4-(1-ethyl-1-methylpropyl)phenyl]-2-methylpropyl]-2, 6-dimethylmorpholine. Amorolfine impurity L- Chemical name: (2RS, 6SR)-4-[(2RS)-3-[3, 5-bis(1, 1-dimethylpropyl) phenyl]-2-methylpropyl]-2, 6-dimethylmorpholine.