Baicalin

Chemical name: β-D-Glucopyranosiduronic acid,5,6-dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl
Molecular formula: C₂₁H₁₈O₁₁;
Molecular weight: 446.35
Structural formula:
Physical properties: Yellow crystal, melting point 223℃