The molecule is a primary ammonium ion obtained by protonation of the four amino groups and deprotonation of the carboxy group of gamma-L-glutamylbutirosin B; major species at pH 7.3. It derives from a neamine(4+). It is a conjugate acid of a gamma-L-glutamylbutirosin B.
(2S)-2-azaniumyl-5-[[(3S)-4-[[(1R,2S,3R,4R,5S)-5-azaniumyl-4-[(2R,3R,4R,5S,6R)-3-azaniumyl-6-(azaniumylmethyl)-4,5-dihydroxyoxan-2-yl]oxy-3-[(2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-2-hydroxycyclohexyl]amino]-3-hydroxy-4-oxobutyl]amino]-5-oxopentanoate