The molecule is a glycoside comprising beta-lactose having a p-(p-dimethylaminophenylazo)phenyl group at the 1-position. It has a role as a dye. It is a glycoside, a monoazo compound and a disaccharide derivative.
(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6S)-6-[4-[[4-(dimethylamino)phenyl]diazenyl]phenoxy]-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol