4-(Difluoro(3,4,5-trifluorophenoxy)methyl)-4'-ethyl-1,1'-bi(cyclohexane) CAS 208338-49-2
| CAS No. | 208338-49-2 |
| Molecular Formula | C21H27F5O |
| Molecular Weight | 390.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(Difluoro(3,4,5-trifluorophenoxy)methyl)-4'-ethyl-1,1'-bi(cyclohexane) 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.
4-(Difluoro(3,4,5-trifluorophenoxy)methyl)-4'-ethyl-1,1'-bi(cyclohexane) (CAS 208338-49-2) is a high-purity analytical reference standard with the molecular formula C21H27F5O and a molecular weight of 390.43 g/mol.
4-(Difluoro(3,4,5-trifluorophenoxy)methyl)-4'-ethyl-1,1'-bi(cyclohexane) (C21H27F5O) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C21H27F5O |
| Molecular Weight | 390.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | F-containing |
Related Difluoro Standards
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Recommended Standards
- 3-[4-(Benzyloxy)phenyl]-3-[(E)-[(4-nitrophenyl)methylidene]amino]propan-1-ol (CAS 861211-66-7)
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- 3-(Dimethylamino)-4-phenyl-N-(3-(trifluoromethyl)phenyl)-1H-pyrazole-1-carbothioamide (CAS 321553-14-4)
- 5-(Pentachlorophenoxymethyl)furan-2-carboxylic acid (CAS 832739-78-3)
- 1-Methylimidazo[1,5-a]pyridine-6-carboxylic acid (CAS 1260797-04-3)
- 5-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethoxy)pyridin-2-amine (CAS 1620575-08-7)
- Ethyl 6-fluoro-2,3-dimethoxybenzoate (CAS 1260651-11-3)
- 1-(5-Bromo-4-fluoro-2-hydroxyphenyl)ethanone (CAS 905454-90-2)
- Methyl 2-((2-methyl-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)amino)acetate (CAS 374921-06-9)
- 2-(2-Fluoro-5-methyl-3-(trifluoromethyl)phenyl)acetonitrile (CAS 1706438-79-0)
- Fluo-4 AM (CAS 273221-67-3)
- methyl 2-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate (CAS 1352396-67-8)
- 1-Benzyl-3-ethylazetidine-3-carbonitrile (CAS 1609647-01-9)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
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