Allopurinol impurity 17 CAS CATO-C4X-145817
| CAS No. | CATO-C4X-145817 |
| Molecular Formula | C4H6N4O |
| Molecular Weight | 126.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Allopurinol impurity 17.
Allopurinol impurity 17 (CAS CATO-C4X-145817) is a certified pharmaceutical impurity reference standard with the molecular formula C4H6N4O and a molecular weight of 126.12 g/mol.
Allopurinol impurity 17 (C4H6N4O) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Allopurinol impurity 17 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H6N4O |
| Molecular Weight | 126.12 g/mol |
| Purity | 97%+ |
| 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 |
| Nitrogen Atoms | 4 |
Related Allopurinol Standards
- Allopurinol EP Impurity A (CAS 5334-31-6)
- 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
- N-Nitroso Metronidazole Impurity 33 (CAS CATO-C4X-140533)
- Azacitidine Impurity 1 (CAS 16352-06-0)
- Minoxidil Impurity 9 (CAS 74638-76-9)
- Temozolomide Impurity 23 (CAS 360-97-4)
- Milrinone Impurity 18 (CAS CATO-C4X-109118)
- Brivaracetam impurity 86 (CAS CATO-C4X-200786)
- Pemafibrate Impurity 44 (CAS CATO-C4X-290344)
- 2-[(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)methanesulfonyl]acetic acid (CAS 1006319-32-9)
- 1-methyl-4-{5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazin-3-yl}-1H-pyrazole (CAS 1334148-03-6)
- N-(5-Isopropyl-1H-1,2,4-triazol-3-yl)-2-methylpropanamide (CAS 1160264-38-9)
- 3,7-Diiodo-1H-indazol-6-ol (CAS 1190322-50-9)
- Cerium(IV) fluoride hydrate (CAS 13477-47-9)
- Ethyl (2S)-2-{4-[({5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}sulfanyl)methyl]benzenesulfonamido}-4-methylpentanoate (CAS 1031212-65-3)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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