9,11-Dehydro Flunisolide Acetate CAS 5049-89-8
| CAS No. | 5049-89-8 |
| Molecular Formula | C26H31FO6 |
| Molecular Weight | 458.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 9,11-Dehydro Flunisolide Acetate (CAS 5049-89-8), a certified reference material (molecular formula C26H31FO6, MW 458.52 g/mol) for analytical method development and quality control.
Based on its molecular formula C26H31FO6, 9,11-Dehydro Flunisolide Acetate contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 458.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C26H31FO6 |
| Molecular Weight | 458.52 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | F-containing |
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Recommended Standards
- (4AR,6S,7R,8S,8aS)-2-phenyl-6-(p-tolylthio)hexahydropyrano[3,2-d][1,3]dioxine-7,8-diyl diacetate (CAS 258333-93-6)
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- (4AR,6S,7R,8S,8aR)-2-phenyl-6-(p-tolylthio)hexahydropyrano[3,2-d][1,3]dioxine-7,8-diyl diacetate (CAS 219518-20-4)
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- 1,6-Anhydro-3,4-O-isopropylidene-2-tosyl-β-D-galactopyranose (CAS 81028-98-0)
- 1171632-48-6 N-Cyclohexyl-1'H-spiro[piperidine-4,2'-quinoxalin]-3'-amine MFCD14281770 (CAS 1171632-48-6)
- Ethyl 4-bromo-3-hydroxy-5-methylbenzoate (CAS 382150-26-7)
- 3-Bromo-N-((3-methyl-1h-pyrazol-4-yl)methyl)aniline (CAS 1156888-60-6)
- 2-Bromo-N-(2-methoxy-5-methylphenyl)acetamide (CAS 130965-93-4)
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