2-Ethoxy-3,4-difluorobenzaldehyde CAS 1552707-37-5
| CAS No. | 1552707-37-5 |
| Molecular Formula | C9H8F2O2 |
| Molecular Weight | 186.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Ethoxy-3,4-difluorobenzaldehyde 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.
2-Ethoxy-3,4-difluorobenzaldehyde (CAS 1552707-37-5) is a high-purity analytical reference standard with the molecular formula C9H8F2O2 and a molecular weight of 186.16 g/mol.
2-Ethoxy-3,4-difluorobenzaldehyde (C9H8F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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 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.
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.) | 1992 |
| Halogen Content | F-containing |
Related Ethoxy Standards
- 4-Ethoxy-2,6-difluorobenzaldehyde (CAS 1017779-48-4)
- 3-Ethoxy-2,4-difluorobenzaldehyde (CAS 1017779-87-1)
- 3-Ethoxy-2,6-difluorobenzaldehyde (CAS 1028263-18-4)
- 4-Ethoxy-2,3-difluorobenzaldehyde (CAS 126162-95-6)
- 6-Ethoxy-2,3-difluorobenzaldehyde (CAS 167684-02-8)
- 2-Ethoxy-3,5-difluorobenzaldehyde (CAS 883535-74-8)
- 2-Ethoxy-4,5-difluorobenzaldehyde (CAS 883535-82-8)
- 3-Ethoxy-4,5-difluorobenzaldehyde (CAS 883535-90-8)
Recommended Standards
- Methyl 2-oxohexahydrofuro[2,3-b]furan-3-carboxylate (CAS 154811-02-6)
- 2-Fluoro-2-(4-fluorophenyl)propanoic acid (CAS 1557849-94-1)
- 2-Fluoro-2-(2-fluoro-5-methylphenyl)acetic acid (CAS 1537146-50-1)
- (4S)-5,8-difluoro-3,4-dihydro-2H-1-benzopyran-4-ol (CAS 1568046-69-4)
- tert-Butyl ((2-formyl-3-hydroxypyridin-4-yl)methyl)carbamate (CAS 1393559-89-1)
- [1-(4-aminobutyl)pyrrolidin-2-yl]methanol (CAS 1249116-36-6)
- 2-Bromo-4-(methoxycarbonyl)benzoic acid (CAS 911799-84-3)
- methyl 3-methoxyisoxazole-5-carboxylate (CAS 16880-11-8)
- (3R)-1-benzyl-3-(propan-2-yl)piperazine (CAS 674791-94-7)
- (2R)-3-((hydroxy(phosphonooxy)phosphoryl)oxy)propane-1,2-diyl dioctanoate, diammonia salt (CAS 474943-13-0)
- 1-(2-Phenoxyethyl)piperazine dimethanesulfonate (CAS 1609399-72-5)
- 1-(Pyrimidin-2-yl)-1h-imidazole-4-carboxylic acid (CAS 1239735-33-1)
- 3-(5-Methyl-1H-benzimidazol-2-yl)propan-1-ol (CAS 13395-19-2)
- D-Phe22-Tirzepatide (CAS CATO-CPTD788912)
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