Molekula
Xanthine (2,6-Dihydroxypurine)
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
Xanthine (2,6-Dihydroxypurine) is a purine derivative used in biochemical research and as an intermediate in pharmaceutical synthesis. It appears as a white to off-white crystalline powder. Available with a CAS number of 69-89-6, its molecular formula is C5H4N4O2 and molecular weight is 152.11 g/mol. Store at ambient temperature. Signal word: Warning.
Molekula supplies Xanthine (2,6-Dihydroxypurine) at ≥95% purity (HPLC) in 25 g packs, from £35.40 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 5 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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25 g — £29.50 per pack ex VAT · £35.40 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 | Almost White to slightly Yellowish Powder |
| Purity (HPLC) | ≥95% |
| Heavy metals | ≤10ppm |
| Loss on Drying | ≤1% |
| Residue on Ignition | ≤0.5% |
| Identification (IR) | Conforms to the Reference Spectrum |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| pKa | pKa = 7.53 |
Source: PubChem CID 1188 (DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 30098252 |
| CAS Number | 69-89-6 |
| IUPAC Name | 3,7-dihydropurine-2,6-dione |
| EC Number | 200-718-6 |
| Molecular Formula | C5H4N4O2 |
| Molecular Weight | 152.11 |
| Exact Mass | 152.0334 |
| SMILES | C1=NC2=C(N1)C(=O)NC(=O)N2 |
| InChIKey | LRFVTYWOQMYALW-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H4N4O2/c10-4-2-3(7-1-6-2)8-5(11)9-4/h1H,(H3,6,7,8,9,10,11) |
| PubChem CID | 1188 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- 1H-Purine-2,6-diol
- 2,6-Dihydroxypurine
- 2,6-dioxopurine
- 3,7-Dihydro-1H-purine-2,6-dione
- 9H-Purine-2,6-diol
- Isoxanthine
- Pseudoxanthine
- Xanthic oxide
- Xanthin
- xanthine
Frequently asked questions
What is Xanthine (2,6-Dihydroxypurine) used for?
Xanthine is primarily used as a biochemical research reagent and intermediate in the synthesis of purine derivatives and pharmaceuticals.
What is the chemical formula and molecular weight of Xanthine?
The formula is C5H4N4O2 with a molecular weight of 152.11 g/mol.
How should Xanthine be stored?
Store at ambient temperature, protected from moisture and light.
What grade of Xanthine does Molekula supply?
Molekula supplies Xanthine with a purity of ≥95% by HPLC, heavy metals ≤10 ppm, loss on drying ≤1% and residue on ignition ≤0.5%, with identity confirmed by IR against the reference spectrum.
Can Molekula supply Xanthine in bulk?
Yes, Molekula can supply Xanthine in bulk quantities—please contact sales for details.
What documentation comes with a purchase of Xanthine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
Where can I buy Xanthine (2,6-Dihydroxypurine)?
Directly from Molekula, which lists Xanthine (2,6-Dihydroxypurine) in 25 g packs from £35.40 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.
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.