Also available in 1 mL, 1 mg, 2 mg, 5 mg, 25 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. Oclacitinib maleate (PF-03394197 maleate) is a novel inhibitor of JAK family members, with IC50 values ranging from 10 to 99 nM, and JAK1-dependent cytokines, with IC50 ranging from 36 to 249 nM, while not inhibiting a panel of 38 non-JAK kinases. Purity 99.17%