If you are going to consult the information about 439081-18-2 from one of the leading 439081-18-2 manufacturers and suppliers in China,Website:://.biopharmaleader.net, Biopharmaleader Co.,Ltd is always at your service.Product InformationCAS NO.439081-18-2 Product NameAfatinibSynonymsBIBW2992FormulaC24H25ClFN5O3Molecular Weight485.94Spec / Purity98%minSupply CapacityDetailsAfatinib is a drug approved in United States, Europe, Taiwan, Mexico, Chile and Japan as well as other countries for the first-line treatment of patients with distinct types of metastatic (EGFR mutation positive) non-small cell lung carcinoma (NSCLC). It acts as an irreversible covalent inhibitor of the receptor tyrosine kinases epidermal growth factor receptor (EGFR) and erbB-2 (HER2).