Ethyl 2,3-difluorobenzoate CAS 773134-65-9
| CAS No. | 773134-65-9 |
| Molecular Formula | C9H8F2O2 |
| Molecular Weight | 186.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2,3-difluorobenzoate (CAS 773134-65-9), a certified reference material (molecular formula C9H8F2O2, MW 186.16 g/mol) for analytical method development and quality control.
Structurally, Ethyl 2,3-difluorobenzoate (C9H8F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 186.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ethyl 2,3-difluorobenzoate 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 | C9H8F2O2 |
| Molecular Weight | 186.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1986 |
| Halogen Content | F-containing |
Related Ethyl Standards
- Ethyl 2,4-Difluorobenzoate (CAS 108928-00-3)
- Ethyl 3,4-difluorobenzoate (CAS 144267-96-9)
- Ethyl 2,6-Difluorobenzoate (CAS 19064-14-3)
- Ethyl 2,5-Difluorobenzoate (CAS 708-25-8)
- Ethyl 3,5-difluorobenzoate (CAS 350-19-6)
- Sodium 2,5-difluorobenzoate (CAS 522651-42-9)
- Sodium 3,5-difluorobenzoate (CAS 530141-39-0)
- Methyl 2,4-difluorobenzoate (CAS 106614-28-2)
Recommended Standards
- Dimethyl 2-formylcyclopropane-1,1-dicarboxylate (CAS 41502-70-9)
- 5-Oxo-1,3-cyclohexanedicarboxylic acid (CAS 90954-19-1)
- Ethyl 2-Oxo-2-(2-oxotetrahydrofuran-3-yl)acetate (CAS 42564-36-3)
- 5-Ethoxy-2,4-difluorobenzaldehyde (CAS 2092187-03-4)
- tert-Butyl (2-formyl-5-(trifluoromethyl)phenyl)carbamate (CAS 109133-94-0)
- 2,2'-(((Oxybis(4,1-phenylene))bis(azanediyl))bis(carbonyl))dibenzoic acid (CAS 82131-85-9)
- Sulfaclozine (CAS 102-65-8)
- (3-Methylphenyl)(2,4,6-trimethylphenyl)iodonium Trifluoromethanesulfonate (CAS 197245-87-7)
- trans-N,N-dimethyl-4-(trifluoromethyl)pyrrolidine-3-sulfonamide (CAS 1808786-32-4)
- Sulfamoylproline (CAS 1101927-59-6)
- Riboflavine 5’-Phosphate (CAS 146-17-8)
- 4-Amino-N-(4-bromo-2-fluorophenyl)benzenesulfonamide (CAS 1016520-83-4)
- 3-(2-Methylpropyl)-1h-pyrazole-5-carboxylic acid (CAS 92933-49-8)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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