(6α)-21-(Acetyloxy)-6-fluoropregna-1,4,9(11),16-tetraene-3,20-dione CAS 2476-74-6
| CAS No. | 2476-74-6 |
| Molecular Formula | C23H25FO4 |
| Molecular Weight | 384.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (6α)-21-(Acetyloxy)-6-fluoropregna-1,4,9(11),16-tetraene-3,20-dione 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.
(6α)-21-(Acetyloxy)-6-fluoropregna-1,4,9(11),16-tetraene-3,20-dione (CAS 2476-74-6) is a high-purity analytical reference standard with the molecular formula C23H25FO4 and a molecular weight of 384.44 g/mol.
Based on its molecular formula C23H25FO4, (6α)-21-(Acetyloxy)-6-fluoropregna-1,4,9(11),16-tetraene-3,20-dione 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 384.44 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.
Physical & Chemical Properties
| Molecular Formula | C23H25FO4 |
| Molecular Weight | 384.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1957 |
| Halogen Content | F-containing |
Related Acetyloxy Standards
- (16α)-21-(Acetyloxy)-16-methyl-pregna-1,4,9(11)-triene-3,20-dione (CAS 4258-83-7)
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Recommended Standards
- N-(Cyclohexylmethyl)-1-[2-methyl-6-(trifluoromethyl)pyrimidin-4-yl]piperidine-4-carboxamide (CAS 1775385-66-4)
- 3-(4-Fluorobenzyl)-5,5-dimethyl-1-(4-phenoxybutyl)-1H-imidazole-2,4(3H,5H)-dione (CAS 900019-19-4)
- 1-[2-Methyl-6-(trifluoromethyl)pyrimidin-4-yl]-N-(4-methylcyclohexyl)piperidine-4-carboxamide (CAS 1775385-49-3)
- 6 β-Fluoro-21-hydroxypregna-1,4,9(11),16-Tetraene-3,20-dione 21-Acetate (CAS 60864-52-0)
- (R)-2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-1-ol (CAS 2505078-37-3)
- 1-(2,3-Difluorophenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1499042-94-2)
- (E)-2-(((3,5-dichlorophenyl)imino)methyl)-6-methoxyphenol (CAS 303771-98-4)
- (S)-2-(Benzylamino)-3-(1H-imidazol-4-yl)propanoic acid (CAS 17451-61-5)
- 2-Methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butan-2-ol (CAS 1430727-39-1)
- 1-(4-Chlorophenyl)-2-[(3-methylphenyl)sulfanyl]ethan-1-one (CAS 331461-95-1)
- Ethyl 2-methyl-2-(4-nitrophenyl)propanoate (CAS 83397-45-9)
- (3-Amino-[1,1'-biphenyl]-4-yl)methanol (CAS 1379348-30-7)
- 2-Cyclopropyl-4-pentyn-2-ol (CAS 6712-34-1)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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