1-(2,4-Dichloro-3-fluorophenyl)ethanone CAS 258345-78-7
| CAS No. | 258345-78-7 |
| Molecular Formula | C8H5Cl2FO |
| Molecular Weight | 207.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.03 g/mol gives 1-(2,4-Dichloro-3-fluorophenyl)ethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(2,4-Dichloro-3-fluorophenyl)ethanone (CAS 258345-78-7) is a high-purity analytical reference standard with the molecular formula C8H5Cl2FO and a molecular weight of 207.03 g/mol.
Based on its molecular formula C8H5Cl2FO, 1-(2,4-Dichloro-3-fluorophenyl)ethanone 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 207.03 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(2,4-Dichloro-3-fluorophenyl)ethanone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H5Cl2FO |
| Molecular Weight | 207.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
Related Dichloro Standards
- 2-(2,4-Dichloro-5-fluorophenyl)oxirane (CAS 1179042-36-4)
- 2,2-Dichloro-1-(3-Fluorophenyl)Ethanone (CAS 127728-55-6)
- 1-(4,5-Dichloro-2-fluorophenyl)ethan-1-one (CAS 1286734-89-1)
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Recommended Standards
- 1-(2,3-Dichloro-6-fluorophenyl)ethan-1-one (CAS 870704-16-8)
- 1-(2,6-Dichloro-3-fluorophenyl)ethanone (CAS 290835-85-7)
- (6-(Cyclopentyloxy)pyridin-3-yl)boronic acid (CAS 871829-85-5)
- 1-(2-Bromoacetyl)imidazolidin-2-one (CAS 25578-69-2)
- (2S,5S)-5-Hydroxypiperidine-2-carboxylic Acid (CAS 63088-78-8)
- H-Tyr-Tyr-Leu-OH (CAS 117961-24-7)
- 2-Amino-4-(4-bromo-1h-pyrazol-1-yl)-2-methylbutanamide (CAS 1250218-13-3)
- 7-Oxo-7-(o-tolyl)heptanoic acid (CAS 898765-33-8)
- 4-(Prop-2-yn-1-yl)oxane-4-carboxylic acid (CAS 1506435-40-0)
- (2S)-3-Methoxy-2-(methylamino)propanamide (CAS 862372-12-1)
- (2R,4S)-2-methyltetrahydro-2H-pyran-4-amine (CAS 2091286-52-9)
- Tert-butyl (1R,4S,6R)-6-hydroxy-2-azabicyclo[2.2.2]Octane-2-carboxylate (CAS 1637687-56-9)
- (Z)-4,4,5,5-Tetramethyl-2-(1-phenylbut-1-en-2-yl)-1,3,2-dioxaborolane (CAS 1217435-93-2)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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