3-Ethoxy-2,4-difluorobenzoic acid CAS 1017779-88-2
| CAS No. | 1017779-88-2 |
| Molecular Formula | C9H8F2O3 |
| Molecular Weight | 202.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethoxy-2,4-difluorobenzoic acid (C9H8F2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3-Ethoxy-2,4-difluorobenzoic acid (CAS 1017779-88-2), a certified reference material (molecular formula C9H8F2O3, MW 202.15 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 3-Ethoxy-2,4-difluorobenzoic acid 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 | C9H8F2O3 |
| Molecular Weight | 202.15 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.) | 1988 |
| Halogen Content | F-containing |
Related Ethoxy Standards
- 4-Ethoxy-3,5-difluorobenzoic acid (CAS 1017779-19-9)
- 2-Ethoxy-3,5-difluorobenzoic acid (CAS 1017779-70-2)
- 4-Ethoxy-2,3-difluorobenzoic acid (CAS 124728-45-6)
- 3-Ethoxy-4,5-difluorobenzoic acid (CAS 1379315-07-7)
- 6-Ethoxy-2,3-difluorobenzoic acid (CAS 1431329-81-5)
- 2-Ethoxy-3,4-difluorobenzoic acid (CAS 1544715-58-3)
- 2-Ethoxy-4,5-difluorobenzoic acid (CAS 1557553-71-5)
- 4-Ethoxy-2,5-difluorobenzoic acid (CAS 1935223-46-3)
Recommended Standards
- alpha,alpha-Difluoro-2-(4-methoxyphenyl)acetic Acid (CAS 1027513-97-8)
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- 1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)ethan-1-ol (CAS 1009032-10-3)
- 3-(3,4-Difluoro-5-hydroxyphenyl)propanoic acid (CAS 1060803-43-1)
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