(6α,11β,16α)-21-(Acetyloxy)-9-bromo-6-fluoro-11-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione CAS 54604-73-8
| CAS No. | 54604-73-8 |
| Molecular Formula | C24H30BrFO5 |
| Molecular Weight | 497.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (6α,11β,16α)-21-(Acetyloxy)-9-bromo-6-fluoro-11-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione (CAS 54604-73-8), a certified reference material (molecular formula C24H30BrFO5, MW 497.39 g/mol) for analytical method development and quality control.
(6α,11β,16α)-21-(Acetyloxy)-9-bromo-6-fluoro-11-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione (C24H30BrFO5) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine/bromine 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.
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 | C24H30BrFO5 |
| Molecular Weight | 497.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1972 |
| Halogen Content | F/Br-containing |
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Recommended Standards
- Budesonide Impurity 72 (CAS CATO-C4X-138972)
- 2,4,6-Tribromo-3,5-dimethylphenyl 4-chlorobenzoate (CAS 331461-40-6)
- Budesonide Impurity 40 (CAS 91160-89-3)
- N-(2,4-dichlorophenyl)-2-((2-((4-methoxyphenyl)sulfonamido)phenyl)thio)acetamide (CAS 477869-05-9)
- N-(2-aminoethyl)-5-methyl-1H-pyrazole-3-carboxamide (CAS 81253-70-5)
- Ethyl2-(5-chloro-6-methyl-2-pyridyl)acetate (CAS 1261771-88-3)
- Epiandrosterone acetate (CAS 1239-31-2)
- 4-Bromo-2-chloro-5-fluorobenzenesulfonamide (CAS 1208075-72-2)
- 3-methyl-2-(1H-1,2,4-triazol-1-yl)butanoic acid (CAS 1016503-66-4)
- Buspirone EP Impurity F (CAS 2512210-24-9)
- 5-amino-2-(hydroxymethyl)benzenesulfonic acid (CAS 1089335-92-1)
- Methyl 2-methyl-1-oxo-2,3-dihydro-1H-indene-2-carboxylate (CAS 72181-95-4)
- (3Z)-2-{[(3-fluorophenyl)methyl]sulfanyl}-3-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-3H-indole (CAS 478044-92-7)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com