The molecule is a C-glycosyl compound that is L-tryptophan in which the hydrogen at position 2 on the indole protion has been replaced by an alpha-mannosyl residue. It is a L-tryptophan derivative and a C-glycosyl compound. It derives from an alpha-D-mannose. It is a tautomer of a 2'-alpha-mannosyl-L-tryptophan zwitterion.
(2S)-2-amino-3-[2-[(2R,3S,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-1H-indol-3-yl]propanoic acid