Stavudine(Zidovudine EP Impurity A) CAS 3056-17-5
| CAS No. | 3056-17-5 |
| Molecular Formula | C10H12N2O4 |
| Molecular Weight | 224.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Stavudine(Zidovudine EP Impurity A) is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Stavudine(Zidovudine EP Impurity A) (CAS 3056-17-5, C10H12N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Stavudine(Zidovudine EP Impurity A) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 224.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Stavudine(Zidovudine EP Impurity A) 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 | C10H12N2O4 |
| Molecular Weight | 224.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >90% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Stavudine Standards
Recommended Standards
- Propofol Impurity 34 (CAS 40946-46-1)
- Acipimox Impurity 13 (CAS CATO-C4X-186613)
- Ketoprofen Impurity 53 (CAS 1420774-68-0)
- Methylaminolevulinate EP Impurity D (CAS 77479-02-8)
- Buspirone impurity 02 (CAS 87789-48-8)
- Roxadustat Impurity 141 (CAS CATO-C4X-2213141)
- Sunitinib Impurity 17 (CAS CATO-C4X-133317)
- tert-Butyl 3,4-dibromo-5-methylbenzoate (CAS 2364585-17-9)
- 3-Bromo-4-(4-methylpiperidin-1-yl)benzaldehyde (CAS 1698473-77-6)
- Levothyroxine Impurity 20 (CAS 7069-47-8)
- 2,4-Dibromo-1-(tert-butoxy)benzene (CAS 1261988-70-8)
- 2-Bromo-4-(4-bromophenyl)-1-butene (CAS 485320-34-1)
- Methyl 5-[(4-formylphenoxy)methyl]furan-2-carboxylate (CAS 332165-48-7)
- Proinsulin C-Peptide (55-89) (human) (CAS 11097-48-6)
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