The chemical Dacomitinib has a designated molecular formula of C24H25ClFN5O2 and a molecular weight of 469.945 g/mol. Synonyms may include: UNII-5092U85G58, PF-00299804-03, (2E)-N-(4-(3-Chloro-4-fluorophenyl)amino)7-methoxyquinazolin-6-yl)4-(piperidin-1-yl)but-2-enamide monohydrate, 2-Butenamide, N-(4-((3-chloro-4-fluorophenyl)amino)-7-methoxy-6-quinazolinyl)-4-(1- piperidinyl)-, hydrate (1:1), (2E)-, Dacomitinib monohydrate (ChemID).