Belotecan hydrochloride213819-48-8100 % similar 7-Ethylcamptothecin78287-27-174 % similar Camptothecin7689-03-462 % similar Sn-3886639-52-361 % similar 9-Hydroxycamptothecin67656-30-861 % similar 9-Aminocamptothecin91421-43-160 % similar 9-Methoxycamptothecin39026-92-159 % similar 9-Nitrocamptothecin91421-42-057 % similar Topotecan hydrochloride119413-54-657 % similar Irinotecan hydrochloride100286-90-654 % similar Hydroxycamptothecin19685-09-754 % similar 4-Ethyl-4,9-dihydroxy-1H-pyrano[3′,4′:6,7]indolizino[1,2-B]quinoline-3,14(4H,12H)-dione64439-81-254 % similar Topotecan123948-87-853 % similar Irinotecan hydrochloride trihydrate136572-09-353 % similar Irinotecan97682-44-551 % similar Exatecan171335-80-151 % similar (S)-4-Ethyl-4-hydroxy-7,8-dihydro-1H-pyrano[3,4-F]indolizine-3,6,10(4H)-trione110351-94-545 % similar