Botanical ExtractQuality & compliance
Allium cepa
Onion / Pyaz extract (Allium cepa) — Custom standardisation available — marker & HPLC assay to customer specification. Typical ranges supplied on request. Bulk B2B supply, GMP & ISO 9001 certified, export-ready. Request a quote from Espíritu Empresarial.
Key active molecule — interactive 3D
Quercetin
Real 3D structure · C15H10O7
Real 3-D structure of the marker compound — drag to rotate. Atom colours follow CPK convention.
Marker compound
Quercetin
Bulb extract standardized to quercetin (5-10%); high-purity quercetin (95%+) is sold as an isolated compound.
Typical market grade — your shipment’s exact value is certified on the batch COA.
Custom standardisation available — marker & HPLC assay to customer specification. Typical ranges supplied on request.
Dry extract / powder. Water-soluble, hydro-ethanolic & oil-soluble grades available on request.
Nutraceutical, cosmeceutical, Ayurvedic & functional food applications. Formulation support available.
We manufacture to your target — tell us the marker spec, grade and volume and we’ll build it to order.
Certificate of Analysis
Get the latest batch Certificate of Analysis with full standardisation, heavy-metals and microbial data. Sent to your work email within 24 hours.
