(6α,9β,11β)-21-(Acetyloxy)-9,11-epoxy-6-fluoro-pregna-1,4,16-triene-3,20-dione CAS 1817-43-2
| CAS No. | 1817-43-2 |
| Molecular Formula | C23H25FO5 |
| Molecular Weight | 400.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(6α,9β,11β)-21-(Acetyloxy)-9,11-epoxy-6-fluoro-pregna-1,4,16-triene-3,20-dione (CAS 1817-43-2) is a high-purity analytical reference standard with the molecular formula C23H25FO5 and a molecular weight of 400.44 g/mol.
Structurally, (6α,9β,11β)-21-(Acetyloxy)-9,11-epoxy-6-fluoro-pregna-1,4,16-triene-3,20-dione (C23H25FO5) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 400.44 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures (6α,9β,11β)-21-(Acetyloxy)-9,11-epoxy-6-fluoro-pregna-1,4,16-triene-3,20-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H25FO5 |
| Molecular Weight | 400.44 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.) | 1957 |
| Halogen Content | F-containing |
Related Acetyloxy Standards
- 17-(Acetyloxy)-6-(hydroxymethyl)-pregna-4,6-diene-3,20-dione (CAS 1867-41-0)
- 145386-12-5 5,11,12-tris(acetyloxy)-8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(13),2,4,6,9,11-hexaen-4-yl acetate (CAS 145386-12-5)
- (3β,17β)-3,17-Bis(acetyloxy)-17-methylandrost-5-en-7-one (CAS 37038-00-9)
- 1-Acetyl-3-(acetyloxy)-7-chloro-5-(2-chlorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one (CAS 18878-17-6)
- 3,21-Bis(acetyloxy)pregna-1,3,5,9(11),16-pentaen-20-one (CAS 1058744-83-4)
- 4-Acetyloxy-N-despropyl N-tert-Butyloxycarbonyl Ropivacaine (CAS 1391053-36-3)
- Methyl 7-(acetyloxy)-2,2-diphenyl-1,3-benzodioxole-5-carboxylate (CAS 886362-24-9)
- 4-Acetyloxy omeprazole sulfone, 98% (CAS 1391054-80-0)
Recommended Standards
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1373621-95-4)
- (E)-6-(4-isopropylstyryl)-2-(3-(trifluoromethyl)benzyl)-4,5-dihydropyridazin-3(2H)-one (CAS 303146-85-2)
- 3-(Cyclopropylmethyl)-7-(4-phenylpiperidin-1-yl)-8-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1254977-87-1)
- 2-((3-Cyano-6-ethyl-5-methyl-4-(trifluoromethyl)pyridin-2-yl)thio)-N-(4-methylthiazol-2-yl)acetamide (CAS 674804-57-0)
- 1-(2,4-Dichloro-5,7-dihydro-6H-pyrrolo[3,4-d]pyrimidin-6-yl)ethan-1-one (CAS 2056920-24-0)
- Butyl 2,2-Difluorocyclopropanecarboxylate (CAS 260352-79-2)
- 5-(2-Chloro-4-(methylsulfonyl)phenyl)-1-(4-methoxyphenyl)-1H-tetrazole (CAS 400089-26-1)
- N-(3-cyanobenzyl)-N-cyclopropylglycine (CAS 1184140-78-0)
- 4-(2-Fluoro-4-methoxyphenyl)thiazol-2-amine (CAS 718596-15-7)
- N-(2-aminoethyl)-N-(2-((carboxymethyl)amino)ethyl)glycine (CAS 2276663-36-4)
- tert-Butyl (R)-(1-hydroxy-4-methylpentan-2-yl)carbamate (CAS 106930-51-2)
- (S)-1-(6-Bromo-5-fluoro-2-methylpyridin-3-yl)ethan-1-amine dihydrochloride (CAS 2137081-24-2)
- Diphenyl (N-Methoxy-N-methylcarbamoylmethyl)phosphonate (CAS 367508-01-8)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
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