34219-38-0 (24E)-5,17,19-trihydroxy-9-{2-[(2-hydroxyethyl)carbamimidoyl]hydrazino}-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,11-trioxo-1,2-dihydro-6H-2,7-(epoxypentadeca[1,11,13]trienoazeno)naphtho[2,1-b]furan-21-yl acetate 34219-40-4 (24E)-9-[2-(4,5-dihydro-1H-imidazol-2-yl)hydrazino]-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,11-trioxo-1,2-dihydro-6H-2,7-(epoxypentadeca[1,11,13]trienoazeno)naphtho[2,1-b]furan-21-yl acetate 34219-37-9 (24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-9-(2-{[3-(methylamino)propyl]carbamimidoyl}hydrazino)-1,6,11-trioxo-1,2-dihydro-6H-2,7-(epoxypentadeca[1,11,13]trienoazeno)naphtho[2,1-b]furan-21-yl acetate 38166-65-3 [(3aR,5S,6R)-5-(2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] acetate