The molecule is an anthracycline cation that is the conjugate acid of daunorubicin, arising from protonation of the amino group. It is a conjugate acid of a daunorubicin.
[(2S,3S,4S,6R)-6-[[(1S,3S)-3-acetyl-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-3-hydroxy-2-methyloxan-4-yl]azanium