Lapatinib ditosylate monohydrate388082-78-8100 % similar Lapatinib ditosylate388082-77-797 % similar Lapatinib231277-92-282 % similar N-[3-Chloro-4-[(3-fluorophenyl)methoxy]phenyl]-6-iodo-4-quinazolinamine231278-20-947 % similar