(11β,16α)-21-(Acetyloxy)-9-fluoro-11,16,17-trihydroxy-pregna-1,4,14-triene-3,20-dione CAS 131918-74-6
| CAS No. | 131918-74-6 |
| Molecular Formula | C23H27FO7 |
| Molecular Weight | 434.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (11β,16α)-21-(Acetyloxy)-9-fluoro-11,16,17-trihydroxy-pregna-1,4,14-triene-3,20-dione (CAS 131918-74-6), a certified reference material (molecular formula C23H27FO7, MW 434.45 g/mol) for analytical method development and quality control.
(11β,16α)-21-(Acetyloxy)-9-fluoro-11,16,17-trihydroxy-pregna-1,4,14-triene-3,20-dione (C23H27FO7) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine 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. 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.
CATO manufactures (11β,16α)-21-(Acetyloxy)-9-fluoro-11,16,17-trihydroxy-pregna-1,4,14-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 | C23H27FO7 |
| Molecular Weight | 434.45 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F-containing |
Related Acetyloxy Standards
- (11ß)-21-(Acetyloxy)-3-ethoxy-11,17-dihydroxy-pregna-3,5-dien-20-one (CAS 56736-68-6)
- 4-(Acetyloxy)-3,5-diiodobenzoic acid (CAS 41072-98-4)
- (11β)-11,21-Bis(acetyloxy)pregna-4,16-diene-3,20-dione (CAS 107952-99-8)
- (16α)-21-Acetyloxy-16,17-dihydroxy-16,17-O-isopropylidene-pregna-1,4,9(11)-triene-3,20-dione (CAS 25092-28-8)
- Tris(acetyloxy)plumbyl acetate (CAS 12365-56-9)
- 10452-65-0 3alpha-Acetyloxy-7-oxo-5beta-cholan-24-oic acid methyl ester (CAS 10452-65-0)
- (6α,9β,11β,16α)-21-(Acetyloxy)-9,11-epoxy-6-fluoro-16-methyl-pregna-1,4-diene-3,20-dione (CAS 61618-91-5)
- 17- (Acetyloxy) - 3- methoxy- 20- oxo-pregna- 3, 5- diene- 6- carboxaldehyde (CAS 57361-81-6)
Recommended Standards
- tert-Butyl 4-(3-((5-(trifluoromethyl)pyridin-2-yl)oxy)benzylidene)piperidine-1-carboxylate (CAS 1020325-45-4)
- 3,9-Bis[2-(3,5-diamino-2,4,6-triazaphenyl)ethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane (CAS 22535-90-6)
- Z-Glu(OtBu)-OSu (CAS 4666-16-4)
- 8-([1,1'-Biphenyl]-4-ylamino)-2-amino-9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,9-dihydro-6H-purin-6-one (CAS 84283-08-9)
- 4-chloro-5-fluoro-7H-pyrrolo[2,3-d]pyrimidine (CAS 582313-57-3)
- 1-Hydroxy-4-phenyl-1H-1,2,3-triazole-5-carboxylic acid (CAS 887405-55-2)
- 1-(2-sulfanylidene-1,3-thiazolidin-3-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 101619-99-2)
- 4-(sec-Butoxy)-3-iodobenzoic acid (CAS 1131614-17-9)
- Ethyl 2-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)-3-phenylpropanoate (CAS 477869-95-7)
- 4-Amino-3-((2-chloro-6-fluorobenzyl)thio)-6-methyl-1,2,4-triazin-5(4H)-one (CAS 261962-48-5)
- 2-(Adamantan-1-yl)ethan-1-amine (CAS 26482-53-1)
- 4-OH-phenyl-florasulam (CAS 886844-32-2)
- Flunarizine EP Impurity D DiHCl (CAS 693765-11-6（free base）)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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