The molecule is an anthracyline cation that is the conjugate acid of (13R)-13-dihydrocarminomycin, obtained by protonation of the amino group. Major microspecies at pH 7.3 It is a conjugate acid of a (13R)-13-dihydrocarminomycin.
[(2S,3S,4S,6R)-3-hydroxy-2-methyl-6-[[(1S,3S)-3,5,10,12-tetrahydroxy-3-[(1R)-1-hydroxyethyl]-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]oxan-4-yl]azanium