The molecule is an L-lysine derivative that is L-lysine bearing a (2R)-4-amino-2-hydroxybutyl substituent at position N(6). It is a L-lysine derivative and a non-proteinogenic L-alpha-amino acid. It is a conjugate acid of a hypusinate.
(2S)-2-amino-6-[[(2R)-4-amino-2-hydroxybutyl]amino]hexanoic acid