The molecule is an amino cyclitol glycoside derived from neomycin and consisting of neamine substituted at position 3 by a 3-O-(2-amino-2-deoxy-alpha-D-gluco-hexodialdo-1,5-pyranosyl)-beta-D-ribofuranosyl group. It derives from a neamine. It is a conjugate base of a 6'''-oxoneomycin C(5+).
(2S,3S,4R,5R,6S)-5-amino-6-[(2R,3S,4R,5S)-5-[(1R,2R,3S,5R,6S)-3,5-diamino-2-[(2R,3R,4R,5S,6R)-3-amino-6-(aminomethyl)-4,5-dihydroxyoxan-2-yl]oxy-6-hydroxycyclohexyl]oxy-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]oxy-3,4-dihydroxyoxane-2-carbaldehyde