Saxagliptin Impurity 29 CAS 1496712-39-0
| CAS No. | 1496712-39-0 |
| Molecular Formula | C18H27N3O3 |
| Molecular Weight | 333.43 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.
Saxagliptin Impurity 29 (CAS 1496712-39-0) is a certified pharmaceutical impurity reference standard with the molecular formula C18H27N3O3 and a molecular weight of 333.43 g/mol.
Saxagliptin Impurity 29 (C18H27N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C18H27N3O3 |
| Molecular Weight | 333.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 3 |
Related Saxagliptin Standards
- Saxagliptin Impurity N2 (CAS 1429782-93-3)
- Saxagliptin Impurity 58 (CAS 841302-24-7)
- Saxagliptin Impurity 86 (CAS CATO-C4X-104986)
- Saxagliptin Impurity 19 (CAS 681282-72-4)
- Saxagliptin Impurity 40 (CAS 361442-00-4)
- Saxagliptin Impurity 6 (CAS 1334321-39-9)
- Saxagliptin Impurity 16 (CAS CATO-C4X-104916)
- Saxagliptin impurity 78 (CAS CATO-C4X-104978)
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