Zidovudine Impurity 19 CAS CATO-C4X-178319
| CAS No. | CATO-C4X-178319 |
| Molecular Formula | C10H14N2O5 |
| Molecular Weight | 242.23 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 Zidovudine Impurity 19.
As a process- or degradation-related impurity, Zidovudine Impurity 19 (CAS CATO-C4X-178319, C10H14N2O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C10H14N2O5, Zidovudine Impurity 19 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 242.23 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H14N2O5 |
| Molecular Weight | 242.23 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 |
| Nitrogen Atoms | 2 |
Related Zidovudine Standards
- Zidovudine Impurity F (CAS 16053-52-4)
- Zidovudine EP Impurity D (CAS 76-84-6)
- Zidovudine EP Impurity B (CAS 25526-94-7)
- Zidovudine Impurity 04 (CAS 73971-82-1)
- Zidovudine Impurity 13 (CAS 123606-70-2)
- Zidovudine-d4 (CAS CATO-C4X-178320)
- Zidovudine EP Impurity K (CAS 596-31-6)
- Zidovudine impurity B (CAS 61008-98-8)
Recommended Standards
- (5-Ethoxy-4-methyloxazole-2-carbonyl)alanine (CAS CATO-C4X-177951)
- Riboflavin EP Impurity B (CAS 1086-80-2)
- Phenylephrine Impurity 103 (CAS CATO-C4X-1467103)
- Urapidil Impurity 90 (CAS CATO-C4X-192490)
- Raloxifene EP Impurity A (CAS 1159977-58-8)
- Regorafenib Impurity 43 (CAS 1798046-84-0)
- Varenicline Impurity 18 (CAS 230615-70-0)
- 1'-Benzyl-3,5,6,7-tetrahydrospiro[imidazo[4,5-c]pyridine-4,4'-piperidine] (CAS 65092-20-8)
- 6-(Morpholin-4-ylcarbonyl)-2,3,4,9-tetrahydro-1H-carbazole (CAS 931666-01-2)
- 2-((Benzoyloxy)methyl)-2-ethylpropane-1,3-diyl dibenzoate (CAS 54547-34-1)
- 2-Oxo-1,2-dihydropyridine-3-carboximidamide (CAS 885953-80-0)
- tert-butyl N-[2-[3-[2-[2-[3-[[2-(tert-butoxycarbonylamino)acetyl]amino]propoxy]ethoxy]ethoxy]propylamino]-2-oxo-ethyl]carbamate (CAS 2110448-96-7)
- 8-Methoxy-2-oxo-2H-chromene-3-carboxylic Acid (CAS 2555-20-6)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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