Source :  The product is a new semi-synthetic derivative of camptothecin.

Active Component :  Topotecan Hydrochloride

Chemical Name :  (S)-10-[(dimethylamino)methyl]-4-ethyl-4,9-dihydroxy-(H-Pyrano[3' , 4':6,7]indolizino[1,2-b]quinoline-3,14[4H,12H]-dione monohydrochloride

Molecular Formula and Molecular Weight : C₂₃H₂₃N₃O₅.HCI  ,  393.91

Structure Formula :

Function :  Applied to a variety of tumors, such as non-small cell lung cancer, liver cancer, gastric cancer, blood diseases, lymphoma. It also has the therapeutic effect of advanced metastatic ovarian cancer after first-line chemotherapy losers.