Hydrocodone Hydrogen Tartrate 2.5-Hydrate Imp. E (EP), Hydrocodone Imp. E (EP), Oxycodone USP Related Compound C CII, Oxycodone USP RC C CII, 7,8-Didehydro-4,5alpha-epoxy-3-methoxy-17-methylmorphinan-6-one, Codeinone, Oxycodone Related Compound C, Codeine Monohydrate Impurity I, Hydrocodone Hydrogen Tartrate 2.5-Hydrate Impurity E, Codeine Impurity I, Hydrocodone Impurity E