Dexamethasone EP Impurity B Disodium Salt CAS 7460-03-9
| CAS No. | 7460-03-9 |
| Molecular Formula | C24H31FO6 |
| Molecular Weight | 434.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dexamethasone EP Impurity B Disodium Salt is closely related to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Dexamethasone EP Impurity B Disodium Salt (CAS 7460-03-9) is a high-purity analytical reference standard with the molecular formula C24H31FO6 and a molecular weight of 434.50 g/mol.
Dexamethasone EP Impurity B Disodium Salt (C24H31FO6) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 EP Impurity B Disodium Salt 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 | C24H31FO6 |
| Molecular Weight | 434.50 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 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | F-containing |
Related Dexamethasone Standards
- Dexamethasone Acetate EP Impurity C (CAS CATO-C4X-116540)
- Dexamethasone Acetate EP Impurity B (CAS CATO-C4X-116550)
- Dexamethasone EP Impurity G (CAS 1177-87-3)
- Dexamethasone Acetate EP Impurity E (CAS 1524-94-3)
- Dexamethasone Impurity 112 (CAS 134429-26-8)
- Dexamethasone Impurity 83 (CAS 1879-87-4)
- Dexamethasone 17-Propionate (CAS 15423-89-9)
- Dexamethasone 21-Propionate (CAS 3793-10-0)
Recommended Standards
- Betamethasone Impurity 56 (CAS 5534-12-3)
- Ethyl 14-(tosyloxy)-3,6,9,12-tetraoxatetradecanoate (CAS 441775-29-7)
- 9α-Fluoro-6α-methylprednisolone 21-Acetate (CAS 432-33-7)
- Fluperolone Acetate (CAS 2119-75-7)
- Trifluoro-methanesulfonic acid butylhexylmethylsilyl ester (CAS 1393804-10-8)
- (2-(Dimethyl(pyridin-3-yl)silyl)phenyl)methanol (CAS 1217863-70-1)
- 2,6-Diethoxytetrahydro-2H-pyran (CAS 3149-12-0)
- 2-Amino-1-(4-isopentylpiperazin-1-yl)ethan-1-one hydrochloride (CAS 1828629-00-0)
- 3-Methylfuran-d3 (CAS 105855-05-8)
- 2,6-Dichloro-3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1010101-09-3)
- Gemcitabine Impurity 35 (CAS CATO-C4X-137235)
- 4,5-Diamino-2-chlorobenzoic acid (CAS 855470-71-2)
- N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-nitrophenyl)acrylamide (CAS 1810048-28-2)
- Insulin Glulisine (CAS 207748-29-6)
Why CATO?
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