(11b,16a)-9-Fluoro-11-hydroxy-17,21-[(1-methoxypentylidene)bis(oxy)]-16-methyl-pregna-1,4-diene-3,20-dione CAS 1062-64-2
| CAS No. | 1062-64-2 |
| Molecular Formula | C28H39FO6 |
| Molecular Weight | 490.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (11b,16a)-9-Fluoro-11-hydroxy-17,21-[(1-methoxypentylidene)bis(oxy)]-16-methyl-pregna-1,4-diene-3,20-dione.
CATO supplies (11b,16a)-9-Fluoro-11-hydroxy-17,21-[(1-methoxypentylidene)bis(oxy)]-16-methyl-pregna-1,4-diene-3,20-dione (CAS 1062-64-2), a certified reference material (molecular formula C28H39FO6, MW 490.60 g/mol) for analytical method development and quality control.
The molecular framework of (11b,16a)-9-Fluoro-11-hydroxy-17,21-[(1-methoxypentylidene)bis(oxy)]-16-methyl-pregna-1,4-diene-3,20-dione (C28H39FO6) is characterized by a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C28H39FO6 |
| Molecular Weight | 490.60 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.) | 1957 |
| Halogen Content | F-containing |
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