| CAS No. | 144654-37-5 |
| Molecular Formula | C20H13FO3 |
| Molecular Weight | 320.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 320.31 g/mol gives 3-(4-Fluoro-2-hydroxyphenyl)-3-phenylisobenzofuran-1(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(4-Fluoro-2-hydroxyphenyl)-3-phenylisobenzofuran-1(3H)-one (CAS 144654-37-5), molecular formula C20H13FO3 and molecular weight 320.31 g/mol, is a CATO reference standard with documented purity and traceability.
3-(4-Fluoro-2-hydroxyphenyl)-3-phenylisobenzofuran-1(3H)-one (C20H13FO3) 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, the carboxyl group imparts weak acidity; 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.
| Molecular Formula | C20H13FO3 |
| Molecular Weight | 320.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |