4979 Flavone Quercetin is a flavonoid that forms the "backbone" for many other flavonoids, including the citrus flavonoids rutin, hesperidin, naringin and tangeritin. In studies, quercetin is found to be the most active of the flavonoids, and many medicinal plants owe much of their activity to their high quercetin content. Quercetin has demonstrated significant anti-inflammatory activity because of direct inhibition of several initial processes of inflammation. For example, it inhibits both the manufacture and release of histamine and other allergic/inflammatory mediators. In addition, it exerts potent antioxidant activity and vitamin C-sparing action. 525-82-6 10680 C15H10O2 White powder. 100°C No indication of carcinogenicity to humans (not listed by IARC). In studies, quercetin is found to be the most active of the flavonoids, and many medicinal plants owe much of their activity to their high quercetin content. 2014-09-11T05:22:42Z 2026-03-27T01:52:51Z http://en.wikipedia.org/wiki/Flavone C10043 42491 CPD-6641 C043562 DB07776 FLN true O=C1C=C(OC2=CC=CC=C12)C1=CC=CC=C1 C15H10O2 InChI=1S/C15H10O2/c16-13-10-15(11-6-2-1-3-7-11)17-14-9-5-4-8-12(13)14/h1-10H VHBFFQKBGNRLFZ-UHFFFAOYSA-N 222.2387 222.068079564 Exogenous Solid 3.56 HMDB03075 10230 CHEM003880 DTXSID2022048 NS00007856 2-phenyl-4H-chromen-4-one