Quercetin dihydrate is the dihydrate crystalline form of the flavonol aglycone quercetin (2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one dihydrate, CAS 6151-25-3), carrying two molecules of water of crystallization that raise its molecular weight to 338.27 versus the 302.23 of the water-free grade. It is plant-derived and supplied as a >=95% HPLC crystalline powder, the most widely traded commercial quercetin grade. Unlike the family's glycoside forms, isoquercitrin and EMIQ, it is the sugar-free aglycone, and unlike the phospholipid phytosome it is a single defined molecule rather than a complex. We manufacture it into capsules, tablets and powders.
- Gélules
- Comprimés
- Poudres
Applications
Single-ingredient flavonoid supplements, multivitamins and combination botanical capsules and tablets.
Documentation & quality
Every order is backed by the documents your quality team files, and the controls behind them.
Certificate of Analysis
every batchSpecification sheet
on requestAllergen statement
on requestGMO statement
on requestTraceability
on requestSafety Data Sheet
where applicableHow it’s controlled
- Identity verified on every incoming raw material
- Screened for heavy metals and microbial contaminants
- Full batch and lot traceability
- Produced under our certified GMP system
Other forms of Quercetin
Quercetin anhydrous
2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one
- CAS
- 117-39-5
- Formula
- C15H10O7
- Vegan
- Sans gluten
- Sans OGM
- Pescétarien
Isoquercetin (isoquercitrin)
2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4H-chromen-4-one
- CAS
- 482-35-9
- Formula
- C21H20O12
- Vegan
- Sans gluten
- Sans OGM
- Pescétarien
Enzymatically modified isoquercitrin (EMIQ)
alpha-oligoglucosyl quercetin-3-O-glucoside (mixture of isoquercitrin and its alpha-1,4-glucosyl homologues)
- Vegan
- Sans gluten
- Pescétarien
Quercetin phytosome (Quercefit)
quercetin - sunflower phospholipid (phosphatidylcholine) complex
- Vegan
- Sans gluten
- Sans OGM
- Pescétarien