Oxyresveratrol-3'-O-beta-D-glucopyranoside shows tyrosinase inhibitory activity, it may be a potential candidate as skin-whitening agents without posing any serious side effects.
2-Naphthalenecarboxylic acid, 4-(D-glucopyranosyloxy)-1-hydroxy-3-(3-hydroxy-3-methylbutyl)-, methyl ester (compound 3) is a naturally occurring substance found in the dried roots of Rubia cordifolia.
3-(β-D-Glucopyranosyloxy)-1,6-dihydroxy-2-methyl-9,10-anthracenedione, also known as an anthraquinone, has been specifically extracted from Rubia cordifolia.