The molecule is an organic cation obtained by protonation of the primary amino groups of kanamycin D. It is an ammonium ion derivative and an organic cation. It is a conjugate base of a kanamycin D.
[(1S,2R,3S,4S,5R)-5-azaniumyl-2-[(2R,3R,4S,5S,6R)-6-(azaniumylmethyl)-3,4,5-trihydroxyoxan-2-yl]oxy-3-hydroxy-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxycyclohexyl]azanium