4-(difluoro(3,4,5-trifluorophenoxy)methyl)-2',3,5-trifluoro-4''-pentyl-1,1':4',1''-terphenyl CAS 916156-32-6
| CAS No. | 916156-32-6 |
| Molecular Formula | C30H22F8O |
| Molecular Weight | 550.48 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 4-(difluoro(3,4,5-trifluorophenoxy)methyl)-2',3,5-trifluoro-4''-pentyl-1,1':4',1''-terphenyl.
CATO supplies 4-(difluoro(3,4,5-trifluorophenoxy)methyl)-2',3,5-trifluoro-4''-pentyl-1,1':4',1''-terphenyl (CAS 916156-32-6), a certified reference material (molecular formula C30H22F8O, MW 550.48 g/mol) for analytical method development and quality control.
4-(difluoro(3,4,5-trifluorophenoxy)methyl)-2',3,5-trifluoro-4''-pentyl-1,1':4',1''-terphenyl (C30H22F8O) 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.
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 | C30H22F8O |
| Molecular Weight | 550.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
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- Betanin (CAS 7659-95-2)
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- 3-(5-amino-1-oxo-isoindolin-2-yl)-1-methyl-piperidine-2,6-dione (CAS 2768326-37-8)
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- Diacerein Impurity 8 (CAS 6030-60-0)
- 1-(Azetidin-3-yl)-3-fluoropiperidine (CAS 1824448-70-5)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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