annamycin annamycin annamycin is an anthracycline antibiotic being investigated for the treatment of cancer. annamycinclinical dataatc codenoneidentifiers iupac name (7s,9s)-7-oxy-6,9,11-trihydroxy-9- (2-hydroxyacetyl)-8,10-dihydro-7h-tetracene-5,12-dione cas number92689-49-1 ypubchem cid115212chemspider103088 yuniisnu299m83qecha infocard100.235.298 chemical and physical dataformulac26h25io11molar mass640.379 g·mol−13d model (jsmol)interactive image smiles o=c2c1c(o)c5c(c(o)c1c(=o)c3ccccc23)c(o)(c(=o)co)c5o4o((o)(o)4i)c inchi inchi=1s/c26h25io11/c1-9-19(30)24(35)18(27)25(37-9)38-13-7-26(36,14(29)8-28)6-12-15(13)23(34)17-16(22(12)33)20(31)10-4-2-3-5-11(10)21(17)32/h2-5,9,13,18-19,24-25,28,30,33-36h,6-8h2,1h3/t9-,13-,18+,19-,24-,25-,26-/m0/s1 ykey:cidnkdmvsinjcg-gkxonysusa-n y (verify)