The molecule is an amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of 4-O-(beta-L-Araf)-cis-L-Hyp. It is a tautomer of a 4-O-(beta-L-Araf)-cis-L-Hyp.
(2S,4S)-4-[(2S,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxypyrrolidin-1-ium-2-carboxylate