4-Ethoxy-3-(trifluoromethyl)benzoyl chloride CAS 647010-69-3
| CAS No. | 647010-69-3 |
| Molecular Formula | C10H8ClF3O2 |
| Molecular Weight | 252.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Ethoxy-3-(trifluoromethyl)benzoyl chloride (CAS 647010-69-3), molecular formula C10H8ClF3O2 and molecular weight 252.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H8ClF3O2, 4-Ethoxy-3-(trifluoromethyl)benzoyl chloride contains a carboxylic acid group, 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 252.62 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.
Physical & Chemical Properties
| Molecular Formula | C10H8ClF3O2 |
| Molecular Weight | 252.62 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
- 4-[(2,2,2-Trifluoroethoxy)methyl]benzoyl chloride (CAS 869952-26-1)
- Ethyl 4-chloro-2-(trifluoromethyl)benzoate (CAS 773139-28-9)
- 3-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]propanamide (CAS 338773-70-9)
- Ethyl 4-chloro-3-(trifluoromethyl)benzoate (CAS 773134-81-9)
- Fumaric Acid-d2 (CAS 24461-32-3)
- dimethyl 2-phenylmalonate (CAS 37434-59-6)
- 1-(Difluoromethyl)-5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2732864-03-6)
- (E)-4-bromo-2-(((4-methoxyphenyl)imino)methyl)phenol (CAS 1227260-60-7)
- 2,2-Difluoro-7-azabicyclo[2.2.1]heptane (CAS 1785442-65-0)
- 2,4-Difluoro-3-methylbenzoyl chloride (CAS 112857-70-2)
- Methyl 2-(5-(aminomethyl)pyridin-2-yl)acetate (CAS 1610760-05-8)
- Ponatinib Impurity 29 (CAS CATO-C4X-226929)
- 3-Amino-N-(4-(trifluoromethoxy)phenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]thieno[3,2-e]pyridine-2-carboxamide (CAS 445382-70-7)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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