The molecule is a mannotriose that is D-mannopyranose in which the hydroxy groups at positions 2 and 6 have each been converted into the corresponding alpha-D-mannopyranoside. It derives from an alpha-D-Manp-(1->2)-D-Manp and an alpha-D-Manp-(1->6)-D-Manp.
(2R,3S,4S,5S,6S)-2-(hydroxymethyl)-6-[[(2R,3S,4S,5S)-3,4,6-trihydroxy-5-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]oxane-3,4,5-triol