(4-Chloro-3-fluorophenyl)(3,4-difluorophenyl)methanone CAS 951890-76-9
| CAS No. | 951890-76-9 |
| Molecular Formula | C13H6ClF3O |
| Molecular Weight | 270.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4-Chloro-3-fluorophenyl)(3,4-difluorophenyl)methanone (CAS 951890-76-9), a certified reference material (molecular formula C13H6ClF3O, MW 270.63 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H6ClF3O, (4-Chloro-3-fluorophenyl)(3,4-difluorophenyl)methanone contains a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 270.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H6ClF3O |
| Molecular Weight | 270.63 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
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- 1-(3-Chloro-4,5-dimethoxyphenyl)-2,2,2-trifluoroethan-1-ol (CAS 1547118-33-1)
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Recommended Standards
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- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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