Azacitidine Impurity 59 CAS 89618-11-1
| CAS No. | 89618-11-1 |
| Molecular Formula | C9H13N3O5 |
| Molecular Weight | 243.22 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.
Azacitidine Impurity 59 (CAS 89618-11-1) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13N3O5 and a molecular weight of 243.22 g/mol.
Based on its molecular formula C9H13N3O5, Azacitidine Impurity 59 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 243.22 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 59 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 | C9H13N3O5 |
| Molecular Weight | 243.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Azacitidine Standards
- Azacitidine Impurity 28 (CAS 3530-56-1)
- Azacitidine Impurity 29 (CAS 26524-60-7)
- Azacitidine Impurity 43 (CAS 13913-16-1)
- Azacitidine Impurity 52 (CAS 77172-20-4)
- Azacitidine Impurity 53 (CAS 27921-78-4)
- Azacitidine Impurity 54 (CAS 16033-23-1)
- Azacitidine Impurity 56 (CAS 154568-81-7)
- Azacitidine Impurity 57 (CAS 16110-07-9)
Recommended Standards
- Azacitidine Impurity 60 (CAS 179239-81-7)
- Azacitidine Impurity 61 (CAS 18265-49-1)
- Azacitidine Impurity 62 (CAS 201681-19-8)
- Azacitidine Impurity 63 (CAS 218452-08-5)
- Tadalafil Impurity 21 (CAS 951661-85-1)
- Amisulpride Impurity 39 (CAS CATO-C4X-104539)
- Atrasentan Impurity 195 (CAS CATO-C4X-3347195)
- Glycine methyl ester hydrochloride (CAS 5680-79-5)
- 4-Acetylpiperidin-2-one (CAS 1416908-28-5)
- 3-((4-Nitro-1H-pyrazol-1-yl)methyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepine (CAS 1245771-56-5)
- N'-(3-methylbenzoyl)-2-(1H-pyrrol-1-yl)benzohydrazide (CAS 478063-05-7)
- Fexofenadine Impurity 18 (CAS 880088-78-8)
- Tetrapropylammonium bromide (CAS 1941-30-6)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
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