Caspofungin Hydroxylamine Impurity

Chemical Name: (10R,12S)-N-((2R,9S,11R,12S,14aS,15S,20S,25aS)-20-((R)-3-amino-1-hydroxypropyl)-12-((2-aminoethyl)(hydroxy)amino)-23-((1S,2S)-1,2-dihydroxy-2-(4-hydroxyphenyl)ethyl)-2,11,15-trihydroxy-6-((R)-1-hydroxyethyl)-5,8,14,19,22,25-hexaoxotetracosahydro-1H-dipyrrolo[2,1-c:2',1'-l][1,4,7,10,13,16]hexaazacyclohenicosin-9-yl)-10,12-dimethyltetradecanamide

Synonym: (3S,5R)-Atorvastatin Calcium Salt (USP)

Smile: O=C(N[C@H]([C@@H](C[C@@H](C(NC(C1=O)[C@H](O)C)=O)NC(CCCCCCCC[C@@H](C)C[C@@H](C)CC)=O)O)N(O)CCN)[C@@]([C@H]2O)([H])N(CC2)C([C@](NC(C(NC([C@@]3([H])N1C[C@H](O)C3)=O)[C@H](O)[C@H](C4=CC=C(O)C=C4)O)=O)([H])[C@H](O)CCN)=O