Molecular formula C15H10O6 CAS No. 491-70-3 Molecular weight 286.24 Chemical structure Specification: >98% Appearance Yellow fine powder Melting point: 328-330 Storage: Store in cool & dry place, Keep away from strong light and heat. Shelf life:24 Months when properly stored. Biochem/physiol Actions Hydroxylated flavone derivative, a strong anti-oxidant and radical scavenger. Suggested to play a role in prevention of cancer.