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Catalog No.:A0859  
Product: Topotecan  
CAS No. 123948-87-8  
Chemical Name: (S)-10-((dimethylamino)methyl)-4-ethyl-4,9-dihydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione  
Molecular Formula: C23H23N3O5  
Molecular Weight: 421.45  
Assay:98%  
Appearance: Solid  
SMILES:O=C1[C@](O)(CC)C2=C(CO1)C(N3CC4=CC5=C(CN(C)C)C(O)=CC=C5N=C4C3=C2)=O  
Storage Condition:Store at -20℃  
Remark:For research use only