Topotecan123948-87-8100 % similar Topotecan hydrochloride119413-54-696 % similar 9-Hydroxycamptothecin67656-30-876 % similar 9-Aminocamptothecin91421-43-168 % similar Hydroxycamptothecin19685-09-768 % similar 4-Ethyl-4,9-dihydroxy-1H-pyrano[3′,4′:6,7]indolizino[1,2-B]quinoline-3,14(4H,12H)-dione64439-81-268 % similar 9-Methoxycamptothecin39026-92-167 % similar Sn-3886639-52-367 % similar Camptothecin7689-03-466 % similar 9-Nitrocamptothecin91421-42-064 % similar 7-Ethylcamptothecin78287-27-163 % similar Irinotecan97682-44-554 % similar Belotecan hydrochloride213819-48-853 % similar Irinotecan hydrochloride100286-90-652 % similar Irinotecan hydrochloride trihydrate136572-09-351 % similar Exatecan171335-80-147 % similar (S)-4-Ethyl-4-hydroxy-7,8-dihydro-1H-pyrano[3,4-F]indolizine-3,6,10(4H)-trione110351-94-546 % similar Exatecan mesilate169869-90-343 % similar