Erlotinib (mesylate)

Erlotinib mesylate (CP-358774 mesylate) inhibits purified EGFR kinase with an IC50 of 2 nM. Erlotinib (mesylate) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.