Molekula
Quercetin
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Quercetin is a naturally occurring flavonoid with antioxidant and anti-inflammatory properties, commonly used in dietary supplements and pharmaceutical research. It also serves as an antioxidant additive that protects cosmetic formulations from UV-induced oxidative damage, and has been used in dye manufacture. It is available in powder form with an assay of ≥98% (UV). CAS: 117-39-5, Molecular Formula: C15H10O7, Molecular Weight: 302.24 g/mol. Store at ambient temperature. Signal word: Danger.
Molekula supplies Quercetin at 98% min(UV) purity in 1 g packs, from £37.08 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow powder |
| Ash | 3% max |
| Heavy metals | 10 ppm max |
| Total plate count | 1000 cfu/g max |
| Salmonella | Negative |
| Loss on Drying | 5.0% max |
| Assay | 98% min(UV) |
| Mesh size | 100% pass 80 mesh |
| Cadmium (Cd) | 1ppm max |
| Lead (Pb) | 3ppm max |
| Arsenic (As) | 2ppm max |
| E. Coli | Negative |
| Mould & Yeast | 100 cfu/g max |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 248 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 316.5 °C |
| Water Solubility | 60 mg/L at 16 °C |
| Solubility (other solvents) | Very soluble in ether, methanol; soluble in ethanol, acetone, pyridine, acetic acid |
Source: PubChem CID 5280343 (DrugBank, HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 86015335 |
| CAS Number | 117-39-5 |
| IUPAC Name | 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one |
| EC Number | 204-187-1 |
| Molecular Formula | C15H10O7 |
| Molecular Weight | 302.24 |
| Exact Mass | 302.0427 |
| SMILES | C1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O)O |
| InChIKey | REFJWTPEDVJJIY-UHFFFAOYSA-N |
| InChI | InChI=1S/C15H10O7/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6/h1-5,16-19,21H |
| PubChem CID | 5280343 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 2932990090 |
Safety & GHS
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Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one
- 3,3',4',5,7-Pentahydroxyflavone
- Meletin
- Quercetine
- Quercetol
- Quercitin
- Quertin
- Quertine
- Sophoretin
- Xanthaurine
Frequently asked questions
What is quercetin used for?
Quercetin is a flavonoid used in dietary supplements for its antioxidant properties and potential anti-inflammatory effects.
What is the chemical formula and molecular weight of quercetin?
The chemical formula is C15H10O7, and the molecular weight is 302.24 g/mol.
How should quercetin be stored?
Quercetin should be stored at ambient temperature, protected from moisture and light.
What grade of quercetin does Molekula supply?
Molekula supplies quercetin as a yellow powder with an assay of 98% min (UV), with limits on heavy metals, microbial counts and loss on drying as set out in the product specification.
Can Molekula supply quercetin in bulk?
Yes, Molekula can supply quercetin in bulk quantities—please contact sales for pricing and availability.
What documentation comes with a quercetin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Where can I buy Quercetin?
Directly from Molekula, which lists Quercetin in 1 g packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Quercetin dangerous goods for shipping?
Yes. Quercetin ships as dangerous goods: UN2811, class 6.1, packing group III.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.