4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy- 7-O-Methylquercetin 90-19-7 AIDS-003059 AIDS003059 C.I. 75690 Flavonoid;.beta.-Rhamnocitrin NSC19802 Quercetin 7-methyl ether Rhamnetin