4-(trans-4-Ethylcyclohexyl)-4'(trifluoromethyl)-1,1'-biphenyl CAS 1072141-52-6
| CAS No. | 1072141-52-6 |
| Molecular Formula | C21H23F3 |
| Molecular Weight | 332.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(trans-4-Ethylcyclohexyl)-4'(trifluoromethyl)-1,1'-biphenyl (CAS 1072141-52-6) is a high-purity analytical reference standard with the molecular formula C21H23F3 and a molecular weight of 332.40 g/mol.
Owing to fluorine substitution, a polycyclic aromatic system, 4-(trans-4-Ethylcyclohexyl)-4'(trifluoromethyl)-1,1'-biphenyl is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 332.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C21H23F3 |
| Molecular Weight | 332.40 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
Related trans Standards
- trans-4-(4-Ethylcyclohexyl)-2,3′,4′,5′-tetrafluoro-1,1′-biphenyl (CAS 174805-87-9)
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- 4-(trans-4-Ethylcyclohexyl)-4'-(trifluoromethoxy)-1,1'-biphenyl (CAS 650634-92-7)
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Recommended Standards
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- 2-Cyclopropoxy-4-fluorobenzenesulfonamide (CAS 1243398-77-7)
- 1-(4-Iodophenyl)ethanol (CAS 53207-29-7)
- [(2E)-2-(Phenylmethylidene)heptyl](propan-2-yl)amine hydrochloride (CAS 1240590-97-9)
- 5-Amino-1-(3-chlorophenyl)-1,5-dihydro-4h-pyrazolo[3,4-d]pyrimidin-4-one (CAS 941868-14-0)
- tert-Butyl (1-(4-hydroxy-4,5-dihydrothiazol-2-yl)-2-phenylethyl)carbamate (CAS 174136-49-3)
- 7-Oxa-2-azaspiro[3.5]nonane Hemioxalate (CAS 1523571-04-1)
- Peptide Impurity 04 (CAS 2913424-91-4)
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