10H,13H-Benzo(de)pyrano(3'm4':6,7)indolizino(1,2-b)quinoline-10,13-dione, 1-amino-9-ethyl-5-fluoro-1,2,3,9,12,15-hexahydro-9-hydroxy-4-methyl-, (1S-trans)-, methanesulfonate (1:1) (salt), dihydrate 197720-53-9 DX-8951f Exatecan mesylate [USAN] Exatecan mesylate hydrate