Compound separated from root bark of Ginkgo biloba and use thereof

摘要

Disclosed is a compound "Ginkgo biloba root acid", which is separated from root bark of Ginkgo biloba, i.e., 1,8-dyhydroxyl-dibenzofuran-2,6-dicarboxylic acid, the molecular formula thereof being C14H8O7. Also disclosed is a method for extracting and separating the compound and the use thereof in identifying an extract of root bark of Ginkgo biloba in a Ginkgo biloba extract.