Ethyl 5-chloro-4-fluoro-2-methoxybenzoate CAS 1823344-14-4
| CAS No. | 1823344-14-4 |
| Molecular Formula | C10H10ClFO3 |
| Molecular Weight | 232.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 5-chloro-4-fluoro-2-methoxybenzoate (CAS 1823344-14-4), a certified reference material (molecular formula C10H10ClFO3, MW 232.64 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, Ethyl 5-chloro-4-fluoro-2-methoxybenzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C10H10ClFO3 |
| Molecular Weight | 232.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Ethyl Standards
- 2-(3-Chloro-4-ethoxy-5-fluorophenyl)acetic acid (CAS 1017778-96-9)
- Ethyl 2-(4-chloro-3-fluorophenoxy)acetate (CAS 1096703-33-1)
- 3-(3-Chloro-4-fluorophenoxy)butanoic acid (CAS 111478-28-5)
- (2-Chloro-4-fluoro-3-methoxy)-3-phenylpropanoicacid (CAS 1171917-26-2)
- 2-Chloro-6-(2-fluorophenyl)nicotinonitrile (CAS 1171926-91-2)
- 2-(2-Chloro-6-fluorophenyl)nicotinonitrile (CAS 1213704-91-6)
- 4-Chloro-2-fluoro-9H-fluoren-9-one (CAS 1220967-84-9)
- 2-Chloro-4-(2-fluorophenyl)nicotinonitrile (CAS 1225544-56-8)
Recommended Standards
- 4-Chlorobenzo[d]oxazole-2-sulfonamide (CAS 1803876-66-5)
- ethyl 4-chloro-2-fluoro-6-methoxybenzoate (CAS 1823930-39-7)
- 2-Chlorobenzo[d]oxazole-6-sulfonamide (CAS 1803803-47-5)
- 2-(2-Chloro-4-fluorophenoxy)-2-methylpropanoic acid (CAS 898265-63-9)
- Ethyl 6-(Trifluoromethoxy)indole-2-carboxylate (CAS 870536-88-2)
- 4-(Difluoromethyl)-2,5-difluoropyridine-3-sulfonamide (CAS 1805160-99-9)
- (2-Methylpropyl)(2-phenylpropyl)amine (CAS 932154-37-5)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 4-chloro-2-nitrobenzoate (CAS 878219-12-6)
- 13H-Dibenzo[a,i]fluorene (CAS 239-60-1)
- 3,4'-Dimethyl-[1,1'-biphenyl]-4-ol (CAS 175136-31-9)
- 4-Methyl-6-(phenylamino)nicotinaldehyde (CAS 1355194-21-6)
- Ozagrel Impurity 5 (CAS 24393-49-5)
- ethyl 2-(2-chloro-4-fluorobenzoyl)butanoate (CAS 1408992-02-8)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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