The molecule is a proton-exchange tautomer of 3-hydroxy-N(6),N(6),N(6)-trimethyl-L-lysine having an anionic carboxy group and a protonated amino group. It is a tautomer of a 3-hydroxy-N(6),N(6),N(6)-trimethyl-L-lysine.
(2S)-2-azaniumyl-3-hydroxy-6-(trimethylazaniumyl)hexanoate