Empagliflozin Impurity 67 CAS CATO-C4X-106567
| CAS No. | CATO-C4X-106567 |
| Molecular Formula | C29H31ClO11 |
| Molecular Weight | N/A |
| 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, Empagliflozin Impurity 67 (CAS CATO-C4X-106567, C29H31ClO11) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Empagliflozin Impurity 67 (C29H31ClO11) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C29H31ClO11 |
| Molecular Weight | 591.01 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Empagliflozin Standards
- Empagliflozin Impurity 96 (CAS 106941-19-9)
- Empagliflozin Impurity 281 (CAS 1096342-71-0)
- Empagliflozin Impurity 293 (CAS 1185339-44-9)
- Empagliflozin Impurity 49 (CAS 1279691-35-8)
- Empagliflozin Impurity 18 (CAS 1279691-36-9)
- Empagliflozin Impurity 63 (CAS 1360568-68-8)
- Empagliflozin impurity 234 (CAS 1417573-74-0)
- Empagliflozin impurity 248 (CAS 143128-40-9)
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