Alogliptin Impurity 19 CAS CATO-C4X-109919
| CAS No. | CATO-C4X-109919 |
| Molecular Formula | C19H24N4O4 |
| Molecular Weight | 372.42 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.
As a process- or degradation-related impurity, Alogliptin Impurity 19 (CAS CATO-C4X-109919, C19H24N4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Alogliptin Impurity 19 (C19H24N4O4) contains a flavonoid 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 | C19H24N4O4 |
| Molecular Weight | 372.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Alogliptin Standards
- Alogliptin Impurity 62 (CAS 607376-86-3)
- Alogliptin impurity 88 (CAS 1473368-47-6)
- Alogliptin Impurity 98 (CAS CATO-C4X-109998)
- Alogliptin Impurity 43 (CAS 1618644-29-3)
- Alogliptin Impurity 14 (CAS CATO-C4X-109914)
- Alogliptin impurity 83 (CAS CATO-C4X-109983)
- Alogliptin Impurity 3 (CAS 1108731-49-2)
- Alogliptin impurity 85 (CAS CATO-C4X-109985)
Recommended Standards
- Bortezomib Impurity 9 (CAS 886979-78-8)
- Sildenafil Impurity 276 (CAS CATO-C4X-1128276)
- Bortezomib Impurity 8 (CAS 886979-81-3)
- Pomalidomide Impurity 43 (CAS CATO-C4X-135443)
- Amphotericin B Impurity 28 (CAS CATO-C4X-184428)
- (1S,2S,5S)-Emtricitabine Impurity N8 (CAS 64282-88-8)
- Ticarcillin EP Impurity D (CAS CATO-C4X-17634)
- 7-Chloro-3-methyl-4,5-dihydro-1H-benzo[b][1,4]diazepin-2(3H)-one (CAS 54028-75-0)
- 1-(4-(5-(1-Aminoethyl)pyridin-2-yl)piperazin-1-yl)ethanone (CAS 1355219-73-6)
- 4-Chloro-3-(methylsulfonyl)-5-nitrobenzoic acid (CAS 32548-10-0)
- 4-(Hex-1-yn-1-yl)-2-phenylbenzofuran (CAS 863871-01-6)
- 6-bromo-1H-pyrazolo[4,3-b]pyridine-3-carboxylic acid (CAS 1363382-29-9)
- Rivastigmine EP Impurity F (CAS 889443-69-0)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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