has role independent continuant luteolin secondary alpha-hydroxy ketone insecticide tetrahydroxyflavone disaccharide derivative neuroprotective agent maysin (6R)-2,6-anhydro-1-deoxy-5-O-(6-deoxy-alpha-D-mannopyranosyl)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-6-yl]-D-xylo-hex-3-ulose A flavone <em>C</em>-glycoside that is luteolin attached to a disaccharide residue at position 6. It has been isolated from natural product <em>Petrorhagia velutina</em> and <em>Zea mays</em> and exhibits insecticidal and neuroprotective activities. (6R)-2,6-anhydro-1-deoxy-5-O-(6-deoxy-alpha-D-mannopyranosyl)-6-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-6-yl]-D-xylo-hex-3-ulose plant metabolite flavone C-glycoside