Product Name:Baicalin CAS#:21967-41-9 Molecular Formula:C21H18O11 Molecular Weight:446.36 g/mol Appearance: Brown to light yellow crystalline powder Purity:98%+ Usage: A key flavonoid compound found in the roots of Scutellaria baicalensis; it can absorb ultraviolet rays, eliminate oxygen free radicals, and also inhibit the formation of melanin.