The molecule is a disaccharide derivative consisting of alpha-L-rhamnose having a 3,6-di-O-methyl-beta-D-glucosyl residue attached at the 4-position; corresponds to the carbohydrate portion of synthetic antigens containing the Mycobacterium leprae-specific epitope.
(2R,3R,4S,5R,6S)-5-[(2S,3R,4S,5R,6R)-3,5-dihydroxy-4-methoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-methyloxane-2,3,4-triol