Clarithromycin EP Impurity R

Chemical Name: N-Demethylerythromycin A ; N-Desmethyl 6-O-Desmethyl Clarithromycin ; N-Desmethyl Erythromycin A ; Erythromycin EP Impurity B

Smile: C[C@@H]([C@@H]([C@H](C(O[C@@H]1CC)=O)C)O[C@@](O[C@@H](C)[C@@H]2O)([H])C[C@@]2(C)OC)[C@H]([C@](O)(C[C@H](C([C@@H]([C@@H](O)[C@@]1(O)C)C)=O)C)C)O[C@@](O[C@H](C)C[C@@H]3NC)([H])[C@@H]3O