The molecule is a beta-D-glucoside that is beta-D-glucopyranose in which the anomeric hydroxy hydrogen is replaced by a but-3-yn-1-yl group. It derives from a but-3-yn-1-ol.
(2R,3R,4S,5S,6R)-2-but-3-ynoxy-6-(hydroxymethyl)oxane-3,4,5-triol