Scutellari baicalensis Root

DEFINITION

The article consists of the dried roots of Scutellaria baicalensis Georgi (Family Lamiaceae) collected in spring or autumn by removing fibrous roots and rough skin. It contains NLT 11% of total flavone glucuronides calculated as the sum of baicalein 7-O-glucuronide (C21H18O11) and wogonin 7-O-glucuronide (C22H20O11) on the dried basis; and NMT 3.5% of total flavone aglycons calculated as the sum of baicalein (C15H10O5) and wogonin (C16H12O5) on the dried basis.