Bis(2-fluorophenyl)methanone CAS 342-23-4
| CAS No. | 342-23-4 |
| Molecular Formula | C13H8F2O |
| Molecular Weight | 218.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Bis(2-fluorophenyl)methanone (CAS 342-23-4), molecular formula C13H8F2O and molecular weight 218.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Bis(2-fluorophenyl)methanone (C13H8F2O) is characterized by a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H8F2O |
| Molecular Weight | 218.20 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.) | 1957 |
| Halogen Content | F-containing |
Related Bis Standards
- (2-Fluorophenyl)(3-fluorophenyl)methanone (CAS 58139-11-0)
- (3-Fluorophenyl)(4-fluorophenyl)methanone (CAS 345-71-1)
- 1,2-bis(3-fluorophenyl)diazene (CAS 331-21-5)
- 2-(4-Fluorophenyl)pyrimidine-4-carboxylic acid (CAS 1092300-73-6)
- 6-(3-Fluorophenyl)pyrimidine-4-carboxylic acid (CAS 1207724-59-1)
- 4-(3-Fluorophenyl)-3-nitropyridine (CAS 1292369-68-6)
- 2-(3-Fluorophenyl)pyrimidine-4-carboxylic acid (CAS 1315364-03-4)
- 4-(4-Fluorophenyl)pyrimidine-2-carboxylic acid (CAS 1491142-21-2)
Recommended Standards
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- Dimethyl 2,2'-(1,3-dioxolane-2,2-diyl)diacetate (CAS 6506-31-6)
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- (2R,3R,4S,5R)-2,3,4,5,6-pentahydroxyhexanoic acid (CAS 20246-53-1)
- 3-Hexanamine Hydrochloride (CAS 76716-22-8)
- 4-(2-Methoxyphenyl)-4h-1,2,4-triazole-3-thiol (CAS 66297-54-9)
- 2,5-Dichloro-6-methoxy-4-methylnicotinonitrile (CAS 886047-45-6)
- 4-Bromo-N-(1-methyl-1h-pyrazol-4-yl)-1h-pyrrole-2-carboxamide (CAS 1155996-99-8)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-(3-fluorophenyl)propanoic acid (CAS 1820567-10-9)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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