The molecule is a tetrasaccharide derivative that is a methyl tetraarabinofuranoside corresponding to part of the arabinomannanan portion of the lipoarabinomannan from Mycobacterium tuberculosis. It has a role as an epitope.
(2S,3S,4S,5R)-2-[(2S,3S,4R,5R)-2-[[(2R,3S,4S,5S)-5-[[(2R,3S,4S,5S)-3,4-dihydroxy-5-methoxyoxolan-2-yl]methoxy]-3,4-dihydroxyoxolan-2-yl]methoxy]-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl]oxy-5-(hydroxymethyl)oxolane-3,4-diol