Cytarabine Impurity 23 CAS CATO-C4X-200523
| CAS No. | CATO-C4X-200523 |
| Molecular Formula | C9H14N2O7 |
| Molecular Weight | 262.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cytarabine Impurity 23 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.
CATO supplies Cytarabine Impurity 23 (CAS CATO-C4X-200523), a pharmacopoeial impurity reference standard (molecular formula C9H14N2O7, MW 262.22 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H14N2O7, Cytarabine Impurity 23 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 262.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H14N2O7 |
| Molecular Weight | 262.22 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Cytarabine Standards
- Cytarabine Impurity 7 (CAS 32659-31-7)
- Cytarabine Impurity 10 (CAS CATO-C4X-200510)
- Cytarabine Impurity 17 (CAS 69321-95-5)
- Cytarabine Impurity 11 (CAS CATO-C4X-200511)
- Cytarabine Impurity 18 (Cytidine N3-Oxide) (CAS 3310-47-2)
- Cytarabine Impurity 8 (CAS 58461-29-3)
- Cytarabine Impurity N3 (CAS 30902-36-4)
- Cytarabine EP Impurity I (CAS 6829-31-8)
Recommended Standards
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- Cinoxacin (CAS 28657-80-9)
- Baloxavir Impurity 45 (CAS 2571566-81-7)
- Cefathiamidine Impurity 16 (CAS 58197-02-7)
- Morinidazole Impurity 35 Formate (CAS CATO-C4X-219635)
- 6-Fluoro-4-methylnicotinonitrile (CAS 1201192-60-0)
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- N-[1-(1H-1,3-Benzodiazol-2-yl)-2-phenylethyl]-2-fluorobenzamide (CAS 338410-71-2)
- N-(4-Fluorobenzyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1259285-59-0)
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- Semaglutide Impurity 137 (x TFA Salt) (CAS CATO-C4X-2226137)
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