Chrysin (5,7-Dihydroxyflavone)

Chrysin (5,7-dihydroxyflavone) is a flavone, a member of the flavonoid class of plant polyphenols, that occurs naturally in passionflower (Passiflora species), honey and bee propolis, supplied by Nustras as a yellow powder for the supplement, sports-nutrition and cosmetic markets. Chemically it is the 5,7-dihydroxy derivative of the flavone (2-phenylchromen-4-one) skeleton.

It is formulated into sports-nutrition and specialty supplements in capsule, tablet and powder form, into flavonoid and botanical blends, and into cosmetic and personal-care preparations where a flavonoid ingredient is specified.

The material is a yellow crystalline powder, practically insoluble in water. CAS 480-40-0, molecular formula C15H10O4, molecular weight 254.24. Assay, loss on drying, residue on ignition, residual solvents and particle size are standardised to specification; identity is confirmed by infrared spectroscopy and assay by high-performance liquid chromatography, and heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies chrysin in bulk commercial quantities, in sealed packaging and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. The regulatory status of chrysin as a supplement or food ingredient varies by market; buyers confirm its status, permitted level and claim for their application in their jurisdiction. Contact us for grade, pricing per kilogram and lead time.