The molecule is a cyclic tetrasaccharide constructed from four alpha-glucopyranosyl residues joined by alternate alpha-(1->6)- and alpha-(1->3)-linkages. It is a macrocycle and a tetrasaccharide. It derives from a nigerose and an isomaltose.
(1R,3S,4R,5R,7S,10R,11S,12S,13R,14R,16S,17R,18R,20S,23R,24S,25S,26R,28R,30R)-5,18-bis(hydroxymethyl)-2,6,8,15,19,21,27,29-octaoxapentacyclo[21.3.1.13,7.110,14.116,20]triacontane-4,11,12,13,17,24,25,26,28,30-decol