Azacitidine Impurity 85 CAS CATO-C4X-138885
| CAS No. | CATO-C4X-138885 |
| Molecular Formula | C12H16N4O7 |
| Molecular Weight | 328.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Azacitidine Impurity 85 (CAS CATO-C4X-138885), a pharmacopoeial impurity reference standard (molecular formula C12H16N4O7, MW 328.28 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C12H16N4O7, Azacitidine Impurity 85 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 328.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Azacitidine Impurity 85 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 | C12H16N4O7 |
| Molecular Weight | 328.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Azacitidine Standards
- Azacitidine Impurity 46 (CAS CATO-C4X-138846)
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- Azacitidine Impurity 79 (CAS CATO-C4X-138879)
- Azacitidine Impurity 31 (CAS 339091-26-8)
- Azacitidine Impurity 32 (CAS 844877-56-1)
- Azacitidine Impurity 33 (CAS CATO-C4X-138833)
- Azacitidine Impurity 76 (CAS CATO-C4X-138876)
- Azacitidine Impurity 84 (CAS CATO-C4X-138884)
Recommended Standards
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- Ivacaftor Impurity 12 (CAS CATO-C4X-296412)
- Gadodiamide Impurity 1 (CAS 137076-43-8)
- Resmetirom impurity 65 (CAS 1696366-11-6)
- 2-(2,3-Dichlorophenyl)-5-hydroxypyridine (CAS 1261910-43-3)
- benzyl 5-{[(tert-butoxy)carbonyl]amino}pentanoate (CAS 190586-91-5)
- 6-(Trifluoromethoxy)quinoxaline, HCl (CAS 1215206-23-7)
- 4-(1-Phenylcyclopentyl)phenol (CAS 36744-76-0)
- cis-3-amino-1-(trifluoromethyl)cyclobutan-1-ol hydrochloride (CAS 1408075-93-3)
- N-Ethyl-3,5-dinitro-N-phenylbenzamide (CAS 64794-17-8)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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