Allopurinol EP Impurity A CAS 5334-31-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 5334-31-6 |
| Molecular Formula | C4H6N4O |
| Molecular Weight | 126.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Allopurinol EP Impurity A (CAS 5334-31-6) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C4H6N4O. Molecular weight: 126.12 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C4H6N4O |
| Molecular Weight | 126.12 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
Related Allopurinol Standards
- Allopurinol impurity 17 (CAS CATO-C4X-145817)
- Allopurinol impurity 25 (CAS 2303964-80-7)
- Allopurinol (CAS 315-30-0)
- Allopurinol-D2 (CAS 916979-34-5)
- Allopurinol-13C3-15N (CAS CATO-C4X-145833)
- Allopurinol impurity 24 (CAS 777835-45-7)
- Allopurinol Impurity 9 (CAS 41621-10-7)
- Allopurinol impurity 15 (CAS CATO-C4X-145815)
Recommended Standards
- Minoxidil Impurity 9 (CAS 74638-76-9)
- N-Nitroso Metronidazole Impurity 33 (CAS CATO-C4X-140533)
- 3-Fluoro-4-methylpyridin-2-amine (CAS 1003710-35-7)
- Metoprolol Impurity 29 (CAS 89507-60-8)
- Abemaciclib impurity 104 (CAS 150807-86-6)
- 5-chloro-2-isopropyl-thiophen-3-amine;hydrochloride (CAS 2567558-89-6)
- 2,3,5-Trimethylthiophene (CAS 1795-05-7)
- 1-Benzyl-2-[1-(4-chlorobenzoyl)-1H-pyrazol-3-yl]-1H-1,3-benzodiazole (CAS 477711-18-5)
- (3-Imidazo[2,1-b][1,3]thiazol-6-ylphenyl)amine (CAS 861206-26-0)
- Neuropeptide FF (CAS 99566-27-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com