Dexamethasone 17-Formyloxy-17-Acid CAS 473273-04-0
| CAS No. | 473273-04-0 |
| Molecular Formula | C22H27FO6 |
| Molecular Weight | 406.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Dexamethasone 17-Formyloxy-17-Acid (CAS 473273-04-0), molecular formula C22H27FO6 and molecular weight 406.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H27FO6, Dexamethasone 17-Formyloxy-17-Acid contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Dexamethasone 17-Formyloxy-17-Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H27FO6 |
| Molecular Weight | 406.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related Dexamethasone Standards
- Dexamethasone Impurity 61 (CAS CATO-C4X-116561)
- Dexamethasone Impurity 96 (CAS 84449-15-0)
- Dexamethasone Acid Ethyl Ester (CAS 2991360-83-7)
- Dexamethasone Impurity N1 (CAS 37926-77-5)
- Dexamethasone Impurity 24 (CAS 55879-47-5)
- Dexamethasone Impurity 97 (CAS CATO-C4X-116597)
- Dexamethasone Impurity 24 (CAS 24510-54-1)
- Dexamethasone EP Impurity B Hydrochloride (CAS 956901-32-9)
Recommended Standards
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- L32-1-Mo (CAS CATO-C4X-35403)
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