Diflorasone CAS 2557-49-5
| CAS No. | 2557-49-5 |
| Molecular Formula | C22H28F2O5 |
| Molecular Weight | 410.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Diflorasone 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.
CATO supplies Diflorasone (CAS 2557-49-5), a certified reference material (molecular formula C22H28F2O5, MW 410.45 g/mol) for analytical method development and quality control.
Structurally, Diflorasone (C22H28F2O5) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 410.45 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C22H28F2O5 |
| Molecular Weight | 410.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Diflorasone Standards
- Diflorasone impurity 3 (CAS CATO-C4X-24803)
- Diflorasone 21-acetate (CAS 3826-17-3)
- Diflorasone impurity 4 (CAS CATO-C4X-24804)
- Diflorasone 17-propionate (CAS 924726-89-6)
- Diflorasone 21-Propionate (CAS 541502-98-1)
- Diflorasone impurity 6 (CAS CATO-C4X-24806)
- Diflorasone Diacetate (CAS 33564-31-7)
- Diflorasone Impurity 5 (CAS CATO-C4X-24805)
Recommended Standards
- Flumethasone (CAS 2135-17-3)
- (S,E)-2-Hydroxy-2-((1R,2S)-1-hydroxy-2-methylbutyl)-9-((R)-4-hydroxy-6-methyl-2-oxo-5,6-dihydro-2H-pyran-3-yl)-6-methylene-9-oxonon-3-enoic acid (CAS 10088-62-7)
- Tafluprost Impurity 8 (CAS 209860-88-8)
- 3-((3-((N-(4-Fluorophenyl)-4-methylphenyl)sulfonamido)-2-hydroxypropyl)amino)propanoic acid (CAS 1021222-24-1)
- 2,5-Dimethylhexan-1-ol (CAS 6886-16-4)
- Ethyl 6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine-3-carboxylate (CAS 1253790-00-9)
- (S)-1-Fluoro-2-propylamine Hydrochloride (CAS 458560-63-9)
- (2E)-3-Amino-3-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2-cyano-N-phenylprop-2-enethioamide (CAS 338959-69-6)
- Cobalt(3+), bis[2,6-di(1H-pyrazol-1-yl-κN2)pyridine-κN]-, (OC-6-11′)-, salt with 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide (1:3) (CAS 1447938-63-7)
- 6-Amino-4-fluoro-1H-indazol-3-ol (CAS 885520-09-2)
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-6-(4-(4-fluorophenyl)piperazin-1-yl)-1,2,4,5-tetrazine (CAS 318958-95-1)
- 2-Amino-2',4'-dichloroacetophenone, HCl (CAS 65146-54-5)
- Alogliptin Impurity 67 (CAS 865759-24-6)
- Des-Asp15-Tirzepatide (CAS CATO-CPTD788958)
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