Inhibitor. EZSolution Lapatinib Ditosylate, Purity: G98% by HPLC, CAS Number: 388082-78-8, Molecular Formula: CGGHGGClFNGOGS.2CGHGOGS, Molecular Weight: 925.46, Appearance: Liquid, Storage : -20 Degree C, Synonyms: GW-572016F ditosylate;Tykerb ditosylate, 10mg