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Crystal, molecular structure and Hirshheld surface analysis of 5-hydroxy-3,6,7,8-tetramethoxyflavone

ABSTRACT: 5-Hydroxy-3,6,7,8-tetramethoxyflavone was isolated from a butanol extract of the herb Scutellaria nepetoides M. Pop. and its structure has been established by X-ray crystallographic analysis. The title compound (systematic name: 5-hydroxy-3,6,7,8-tetramethoxy-2-phenyl-4H-chromen-4-one), C19H18O7, is a flavone that was isolated from a butanol extract of the herb Scutellaria nepetoides M. Pop. The flavone molecule is almost planar, with a dihedral angle between the planes of the benzopyran-4-one group and the attached phenyl ring of 6.4?(4)°. The 5-hydroxy group forms a strong intramolecular hydrogen bond with the carbonyl group, resulting in a six-membered hydrogen-bonded ring. The crystal structure has triclinic (P

SUBMITTER: Aisa H

PROVIDER: S-EPMC7643244 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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