Ethanone, 1,1'-(9,9-difluoro-9H-fluorene-2,7-diyl)bis- CAS 1422487-36-2
| CAS No. | 1422487-36-2 |
| Molecular Formula | C17H12F2O2 |
| Molecular Weight | 286.27 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 Ethanone, 1,1'-(9,9-difluoro-9H-fluorene-2,7-diyl)bis-.
Ethanone, 1,1'-(9,9-difluoro-9H-fluorene-2,7-diyl)bis- (CAS 1422487-36-2), molecular formula C17H12F2O2 and molecular weight 286.27 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H12F2O2, Ethanone, 1,1'-(9,9-difluoro-9H-fluorene-2,7-diyl)bis- contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 286.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C17H12F2O2 |
| Molecular Weight | 286.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1991 |
| Halogen Content | F-containing |
Related Ethanone Standards
- 3741-90-0 Ethanone, 1-phenyl-, 2,2-diphenylhydrazone Ethanone, 1-phenyl-, diphenylhydrazone (CAS 3741-90-0)
- Ethanone, 2,2,2-trichloro-1-(1-ethyl-5-nitro-1h-pyrrol-2-yl)- (CAS 53391-43-8)
- Ethanone, 1-(1-pyrrolidinyl)-2-[(5,6,7,8-tetrahydro-4H-[1,2,3]triazolo[1,5-a][1,4]diazepin-3-yl)methoxy]- (CAS 1422059-28-6)
- Ethanone, 1-(1-pyrrolidinyl)-2-[(6,7,8,9-tetrahydro-5H-imidazo[1,2-a][1,4]diazepin-6-yl)methoxy]- (CAS 1422135-55-4)
- Ethanone, 1-[3-(1,1-difluoro-2-methoxyethyl)-2-methyl-5-nitrophenyl] (CAS 2883761-48-4)
- Ethanone, 2,2,2-trichloro-1-(1-methyl-5-nitro-1h-pyrrol-2-yl)- (CAS 53391-42-7)
- Ethanone, 2-[[(3aR,5R,7aR)-octahydropyrano[3,2-b]pyrrol-5-yl]methoxy]-1-(1-pyrrolidinyl)-, rel- (CAS 1422065-99-3)
- Ethanone, 2-(6-methyl-2-pyridinyl)-1-(6-quinoxalinyl)- (CAS 356560-90-2)
Recommended Standards
- 1-(4-((4-(Trifluoromethyl)thiazol-2-yl)amino)phenyl)ethanone (CAS 1196724-02-3)
- 1-(2-((3-(Trifluoromethyl)phenyl)amino)thiazol-5-yl)ethan-1-one (CAS 1582770-06-6)
- (1-(4-Fluoro-3-(trifluoromethyl)phenyl)-2,5-dimethyl-1H-pyrrol-3-yl)methanamine (CAS 1177342-17-4)
- tert-Butyl N-{[(2,4-difluorophenyl)carbamoyl]methyl}carbamate (CAS 1823321-02-3)
- 3,5-Dichloro-1-ethylpyrazin-2(1H)-one (CAS 1187017-35-1)
- 4,4',4''-Tris(diphenylamino)triphenylamine (CAS 105389-36-4)
- 4-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-1-(3,4,5-trimethoxybenzoyl)piperidine (CAS 1775302-55-0)
- 1-((2-Chlorobenzyl)oxy)-2-(2,4-dichlorophenyl)-1H-imidazo[4,5-b]pyridine (CAS 400088-65-5)
- 4-(1-Methyl-1h-indol-3-yl)butan-1-amine (CAS 1339450-14-4)
- 2-(Tert-butyl)-6-hydroxyisonicotinic acid (CAS 102015-02-1)
- 1-(2-Chlorobenzyl)-2-(2-chloropyridin-3-yl)-5,6-dimethyl-1H-benzo[d]imidazole (CAS 344278-96-2)
- 5,8-Dimethoxy-2-[3-(trifluoromethyl)phenyl]quinoline (CAS 860783-87-5)
- 1H-indole-6-carboxamide (CAS 1670-88-8)
- Exenatide Acetate (CAS 141732-76-5)
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