The molecule is an amino-acid cation obtained by deprotonation of the carboxy group and protonation of the two amino groups of (3R)-3-methyl-D-ornithine; major species at pH 7.3. It is a conjugate acid of a (3R)-3-methyl-D-ornithine.
(2R,3R)-2,5-bis(azaniumyl)-3-methylpentanoate