Oxypurinol
Oxypurinol (CAS 2465-59-0), with the molecular formula C5H4N4O2 and a molecular weight of 152.11, is a significant metabolite of allopurinol. It functions as a potent inhibitor of xanthine oxidase, a role extensively utilised in biochemical research for studying enzyme kinetics and specificity. Additionally, oxypurinol exhibits anti-inflammatory properties through its inhibitory action on xanthine oxidase.

Xanthine Oxidase Inhibition
Oxypurinol serves as a critical research tool for inhibiting xanthine oxidase. This allows scientists to investigate the enzyme's activity, kinetics, and specificity in various biological contexts.
Biochemical Research
As a metabolite of allopurinol, oxypurinol is employed in biochemical studies to understand metabolic pathways and enzyme interactions, particularly those involving purine metabolism.
Anti-inflammatory Research
Its capacity to inhibit xanthine oxidase contributes to its use in research exploring anti-inflammatory mechanisms, particularly those linked to uric acid production.
| Molecular weight | 152.11 |
|---|---|
| Empirical formula | C5H4N4O2 |
| Assay | ≥98% (HPLC) |
| Application | Oxypurinol, an allopurinol metabolite, is used as an inhibitor to study the specificity and kinetics of of xanthine oxidase(s). Oxypurinol is also used as an anti-inflammatory agent via inhibition of xanthine oxidase. |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Oxypurinol used for?
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Oxypurinol is used in biochemical research as an inhibitor of xanthine oxidase to study enzyme kinetics and specificity. It is also recognised for its anti-inflammatory properties due to its inhibition of xanthine oxidase.
What is the CAS number and molecular formula for Oxypurinol?
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The CAS number for Oxypurinol is 2465-59-0, and its molecular formula is C5H4N4O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oxypurinol with an assay of ≥98% (HPLC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Oxypurinol be handled safely?
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Handle Oxypurinol with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation. Avoid breathing dust. It is classified as causing skin irritation, serious eye irritation, and respiratory irritation (H315-H319-H335).
Is Oxypurinol a controlled substance?
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The provided data does not indicate that Oxypurinol is a controlled substance.
How is Oxypurinol packed and shipped?
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Oxypurinol is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample for Oxypurinol?
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To request a quote or a sample of Oxypurinol, please contact our sales team through the website or by phone.
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