(R)-(-)-Camptothecin Price Not Available 1mg (R)-(-)-Camptothecin Supplier Page Catalog Number R010222 Molecular Formula C20H16N2O4 CAS# 110351-92-3 Purity ≥90% Inchi InChI=1S/C20H16N2O4/c1-2-20(25)14-8-16-17-12(7-11-5-3-4-6-15(11)21-17)9-22(16)18(23)13(14)10-26-19(20)24/h3-8,25H,2,9-10H2,1H3/t20-/m1/s1 Inchi Key VSJKWCGYPAHWDS-HXUWFJFHSA-N SMILES CCC1(C2=C(COC1=O)C(=O)N3CC4=CC5=CC=CC=C5N=C4C3=C2)O Size 1mg Supplier Page https://www.musechem.com/product/R010222.html