Oroxylin A 7-O-β-D-glucuronide methyl ester is a nature product that could be isolated form the roots of Scutellaria baicalensis Georgi[1].
References
[1] Wang MH, et, al. A new antioxidant flavone glycoside from Scutellaria baicalensis Georgi. Nat Prod Res. 2014;28(20):1772-6. DOI:10.1080/14786419.2014.931391
