Allopurinol
Allopurinol (CAS: 315-30-0, Formula: C5H4N4O, MW: 136.11) is a heterocyclic organic compound that functions as a xanthine oxidase inhibitor. Its primary application is in the management of hyperuricemia and gout, conditions characterised by elevated uric acid levels. Allopurinol reduces the production of uric acid by inhibiting the enzyme responsible for its synthesis. Tech Serve Solutions supplies Allopurinol for research and laboratory applications.
- IUPAC
- 1H-Pyrazolo(3,4-d)pyrimidin-4-ol,4-Hydroxypyrazolo(3,4-d)pyrimidine,4-Hydroxypyrazolo[3,4-d]pyrimidine,HPP
- Synonyms
- 4-Hydroxypyrazolo(3,4-d)pyrimidine1H-Pyrazolo(3,4-d)pyrimidin-4-olHPP

Gout Management
Allopurinol is widely used to treat gout by lowering serum uric acid levels. It prevents the formation of urate crystals in joints and tissues, thereby alleviating pain and inflammation associated with gout attacks.
Hyperuricemia Treatment
This compound serves as a critical agent for managing hyperuricemia, a condition of abnormally high uric acid levels in the blood. By inhibiting xanthine oxidase, it effectively reduces uric acid production.
Prevention of Kidney Stones
Allopurinol can be prescribed to prevent certain types of kidney stones, particularly those formed from uric acid. By lowering urinary uric acid, it reduces the risk of stone formation and recurrence.
Research Reagent
As a well-characterised enzyme inhibitor, Allopurinol is employed in biochemical and pharmacological research. It is used to study purine metabolism and the effects of xanthine oxidase inhibition in various biological systems.
| Molecular weight | 136.11 |
|---|---|
| Empirical formula | C5H4N4O |
| Melting point | >300 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-43 |
| Safety statements (S) | 28-36/37-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... XDH(7498) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Allopurinol used for?
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Allopurinol is primarily used to treat conditions caused by excess uric acid, such as gout and hyperuricemia, and to help prevent uric acid kidney stones. It functions by inhibiting the enzyme xanthine oxidase.
What is the CAS number and chemical formula for Allopurinol?
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The CAS number for Allopurinol is 315-30-0, and its chemical formula is C5H4N4O.
What grade and purity does Tech Serve Solutions supply for Allopurinol?
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Tech Serve Solutions supplies Allopurinol as a research-grade chemical. The specific purity assay is available upon request and may vary. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Allopurinol be handled safely?
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Allopurinol is classified as toxic if swallowed and may cause an allergic skin reaction. Handle with appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a P2 respirator if necessary. Avoid ingestion and skin contact.
Is Allopurinol a controlled substance?
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The provided data does not indicate that Allopurinol is a controlled substance. However, regulations can vary by jurisdiction.
How is Allopurinol packed and exported by TSS?
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Allopurinol is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions. Specific packaging details are available upon inquiry.
How can I request a sample or quote for Allopurinol?
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To request a sample or a quotation for Allopurinol, please contact our sales department with your specific requirements.
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