TTC35H: Topotecan 5-Hydroxy Impurity (2HCl)

10-Hydroxy-9-[(dimethylamino)methyl]-5-hydroxy-(20S,5RS)-camptothecin dihydrochloride ; 

CAS # 504413-73-4 ;

C23H25Cl2N3O6 ;
Mol. Wt.: 510.37 ;