has role is deprotonated form of has functional parent independent continuant amino cyclitol glycoside toxin kanamycin B tobramycin A amino cyclitol glycoside that is kanamycin B lacking the 3-hydroxy substituent from the 2,6-diaminoglucose ring. CHEBI:28864 antibacterial agent antiinfective agent amino cyclitol ophthalmology drug anti-inflammatory agent tobramycin(5+)