Dexamethasone Impurity 115 CAS CATO-C4X-1165115
| CAS No. | CATO-C4X-1165115 |
| Molecular Formula | C24H31FO7 |
| Molecular Weight | 450.50 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 450.50 g/mol gives Dexamethasone Impurity 115 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Dexamethasone Impurity 115 (CAS CATO-C4X-1165115), a pharmacopoeial impurity reference standard (molecular formula C24H31FO7, MW 450.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Dexamethasone Impurity 115 (C24H31FO7) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. 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. 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 | C24H31FO7 |
| Molecular Weight | 450.50 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Dexamethasone Standards
- Dexamethasone Impurity 86 (CAS 2796254-05-0)
- Dexamethasone Impurity 129 (CAS CATO-C4X-1165129)
- Dexamethasone 17-Propionate (CAS 15423-89-9)
- Dexamethasone 21-Propionate (CAS 3793-10-0)
- Dexamethasone impurity 66 (CAS CATO-C4X-116566)
- Dexamethasone Impurity 55 (CAS CATO-C4X-116555)
- Dexamethasone Impurity 83 (CAS 1879-87-4)
- Dexamethasone Acetate EP Impurity E (CAS 1524-94-3)
Recommended Standards
- N-(3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2-((3-cyano-6-ethyl-5-methyl-4-(trifluoromethyl)pyridin-2-yl)thio)acetamide (CAS 664994-23-4)
- Triamcinolone Acetonide EP Impurity C (CAS 161740-69-8)
- 21-O-Acetyl 6β-Hydroxy Dexamethasone (CAS 72559-77-4)
- Triamcinolone Impurity 40 (CAS CATO-C4X-132640)
- Risdiplam Impurity 2 (CAS CATO-C4X-30122)
- Lifitegrast Impurity 110 (CAS 2091680-73-6)
- Baloxavir impurity 80 (CAS 2136287-77-7)
- tert-Butyl (1-carbamoylcyclopropyl)carbamate (CAS 507264-66-6)
- N-(3-bromophenyl)thiazolidine-4-carboxamide hydrochloride (CAS 1833226-84-8)
- Ethyl [[(5-Bromo-6-methyl-2-pyridyl)amino]carbonothioyl]carbamate (CAS 1124382-96-2)
- (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(4-chloro-2-fluorophenyl)methanone (CAS 898756-45-1)
- 1,3-Difluoro-5-methoxy-2-(methoxymethyl)benzene (CAS 2379322-28-6)
- [5-(propan-2-yl)-1,3-thiazol-2-yl]methanol (CAS 165315-71-9)
- Tyr-Proinsulin C-Peptide (55-89) (human) (CAS 139532-11-9)
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