Oxymetazoline EP Impurity C

Oxymetazoline EP Impurity C is a synthetic byproduct arising from the oxidation pathway during Oxymetazoline production, characterized by a substituted imidazole ring fused to a 2-aminoethyl chain bearing a hydroxyl group at the terminal position. Its structure incorporates a methylene bridge extending from the imidazole nitrogen, differentiating it from the parent compound through an additional methyl substitution on the aromatic moiety. This impurity serves as a critical reference standard for HPLC-based quantification of oxidative degradation products in Oxymetazoline formulations.