Lapatinib 
  CAS: 231277-92-2 
  MF: C29H26ClFN4O4S 
  MW: 581.0575432 
  Usage Lapatinib Ditosylate (GW572016, GW2016, Tykerb, Tyverb) is a potent EGFR and ErbB2 inhibitor with IC50 of 10.8 and 9.2 nM, respectively. 
  Purity: 99% 
  Usage: API 
  Package: 1KG foil bag; 25Kg drum 
  Price: negotiable