The molecule is an S-glycosyl compound that consists of 4-aminothiophenol having a beta-lactosyl moiety attached to the sulfur via a thioglycosidic bond. It derives from a beta-lactose.
(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6S)-6-(4-aminophenyl)sulfanyl-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol