Oclacitinib Maleate and its Impurities

Oclacitinib Maleate (brand name Apoquel) is a veterinary medication used in the control of atopic dermatitis and pruritus from allergic dermatitis in dogs at least 12 months of age. Reference standards of Oclacitinib Maleate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.