Isoorientin

2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-6-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-chromen-4-one;
(1S)-1,5-anhydro-1-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-6-yl]-D-glucitol
Mol. Formula:  C21H20O11                                                                                                        
Mol. Weight:   448.38                                                    
CAS No.: 4261-42-1
Botanical Source: Bamboo leaves(Phyllostachys nigra)