Description

Allopurinol is a xanthine oxidase inhibitor, a critical pharmaceutical active ingredient used to manage uric acid levels. Its primary commercial value lies in the production of effective medications for chronic conditions like gout and kidney stones, offering reliable therapeutic outcomes. This high-purity compound is essential for pharmaceutical manufacturers, research institutions, and fine chemical suppliers focused on metabolic disorder treatments and advanced drug development.

Application

• Pharmaceutical API: Primary use as the active pharmaceutical ingredient (API) in medications for gout and hyperuricemia.
• Chronic Gout Management: Formulation into tablets and oral suspensions for long-term prevention of gout attacks and tophi.
• Hyperuricemia Treatment: Used in drugs to lower elevated serum uric acid levels, often associated with chemotherapy or certain malignancies.
• Kidney Stone Prevention: Key component in therapies aimed at preventing the formation of uric acid kidney stones.
• Research & Development: Serves as a reference standard and building block in biochemical research for studying purine metabolism and xanthine oxidase inhibition.
• Veterinary Medicine: Application in veterinary pharmaceuticals for managing similar metabolic disorders in animals.

Basic Information

Product Name	Allopurinol
CAS No.	1085-91-2
Molecular Formula	C5H4N4O
Molecular Weight	136.11 g/mol
Synonyms	1H-Pyrazolo[3,4-d]pyrimidin-4-ol; 4-Hydroxypyrazolo[3,4-d]pyrimidine; Allopur; Zyloprim; Zyloric; HPP; NSC-1390; BW 56-158; Lopurin; Milurit; Apurin; Cellidrin; Foligan; Uricemil
EINECS	214-121-7

Quality Control

Our Allopurinol is manufactured under strict quality management systems, targeting compliance with major pharmacopoeial standards such as USP, EP, and BP. Each batch undergoes comprehensive analytical testing including assay, impurity profiling, and residual solvent analysis to ensure high purity and batch-to-batch consistency. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials. The product is stable under these recommended conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%
Microbial Limits	Meets USP <61> and <62> requirements

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.