Linagliptin Impurity 3 CAS CATO-C4X-11013
| CAS No. | CATO-C4X-11013 |
| Molecular Formula | C19H24N6O2 |
| Molecular Weight | 368.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 368.43 g/mol gives Linagliptin Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Linagliptin Impurity 3 (CAS CATO-C4X-11013, C19H24N6O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C19H24N6O2, Linagliptin Impurity 3 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 368.43 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.
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 | C19H24N6O2 |
| Molecular Weight | 368.43 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Linagliptin Standards
- Linagliptin Impurity 29 (CAS 1911621-52-7)
- Linagliptin impurity 118 (CAS CATO-C4X-1101118)
- Linagliptin Impurity 49 (CAS CATO-C4X-110149)
- Linagliptin Impurity 26 (CAS CATO-C4X-110126)
- Linagliptin impurity 99 (CAS CATO-C4X-110199)
- Linagliptin impurity 116 (CAS CATO-C4X-1101116)
- Linagliptin Impurity 1 (CAS CATO-C4X-11011)
- Linagliptin Impurity 83 (CAS 2436762-89-7)
Recommended Standards
- Fmoc-Lys-OH (CAS 105047-45-8)
- Propafenone Impurity 33 (CAS CATO-C4X-132233)
- 5-Methoxystrictamine 870995-64-5 C21H24N2O3 W1056 (CAS 870995-64-5)
- N-nitroso-propafenone impurity B (CAS CATO-C4X-132237)
- Pramipexole Impurity 88 (CAS CATO-C4X-110788)
- Norepinephrine Impurity 58 (CAS 408328-15-4)
- Fenofibrate Impurity 15 (CAS 34183-01-2)
- (S)-2-Amino-4-(3,4-dihydroisoquinolin-2(1H)-yl)-1-(isoindolin-2-yl)butane-1,4-dione (CAS 847928-30-7)
- methyl 3-cyclopropyl-1-ethyl-1H-pyrazole-5-carboxylate (CAS 1173048-48-0)
- 6-Amino-4-chloro-5-(difluoromethyl)pyridine-2-sulfonamide (CAS 1805930-60-2)
- 1-(2-Methoxyethyl)-1H-pyrrolo[2,3-c]pyridine-3-carboxylic acid (CAS 1313266-91-9)
- 76692-34-7 2-bromonon-1-ene DTXSID60373727 (CAS 76692-34-7)
- Bempedoic Acid Impurity N1 (CAS 30313-67-8)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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