The molecule is a carbamoylkanamycin that is tobramycin bearing a single carbamoyl substituent located at position 6'' (on the 3-aminoglucose ring). It derives from a tobramycin. It is a conjugate base of a nebramycin 5'(5+).
[(2R,3S,4S,5R,6S)-4-amino-6-[(1S,2S,3R,4S,6R)-4,6-diamino-3-[(2R,3R,5S,6R)-3-amino-6-(aminomethyl)-5-hydroxyoxan-2-yl]oxy-2-hydroxycyclohexyl]oxy-3,5-dihydroxyoxan-2-yl]methyl carbamate