2-Hydroxy-4,5-difluorobenzaldehyde CAS 199287-52-0
| CAS No. | 199287-52-0 |
| Molecular Formula | C7H4F2O2 |
| Molecular Weight | 158.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4F2O2, 2-Hydroxy-4,5-difluorobenzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 158.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
2-Hydroxy-4,5-difluorobenzaldehyde (CAS 199287-52-0) is a high-purity analytical reference standard with the molecular formula C7H4F2O2 and a molecular weight of 158.10 g/mol.
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), 2-Hydroxy-4,5-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.
Physical & Chemical Properties
| Molecular Formula | C7H4F2O2 |
| Molecular Weight | 158.10 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.) | 2013 |
| Halogen Content | F-containing |
Related Hydroxy Standards
- Methyl 4-hydroxy-5,6-dihydro-2H-pyran-3-carboxylate (CAS 910332-88-6)
- 6-Hydroxy-1H-indole-4-carbonitrile (CAS 1082040-53-6)
- 6-Hydroxy-1H-indole-2-carbonitrile (CAS 1092350-96-3)
- 2-Hydroxy-1h-indole-3-carbonitrile (CAS 1146290-35-8)
- 5-Hydroxy-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid (CAS 117229-60-4)
- 5-Hydroxy-1H-indole-2-carbonitrile (CAS 1508587-97-0)
- 5-Hydroxy-1H-indole-3-carbonitrile, 97% (CAS 197512-21-3)
- 1-Hydroxy-1H-indole-4-carbonitrile (CAS 96631-81-1)
Recommended Standards
- 2,6-Difluoro-4-hydroxybenzaldehyde (CAS 532967-21-8)
- 3,4-Difluoro-2-hydroxybenzaldehyde (CAS 502762-95-0)
- 2,5-Difluorobenzoic acid (CAS 2991-28-8)
- 3,4-Difluoro-5-hydroxybenzaldehyde (CAS 887584-91-0)
- 5-(Dimethylsulfamoyl)-2-iodobenzoic acid (CAS 926229-53-0)
- 2-([1,1'-Biphenyl]-3-yl)pyrimidine (CAS 377047-38-6)
- 1,2-Difluoro-3-(trichloromethoxy)benzene (CAS 158178-39-3)
- (2-((tert-Butyldimethylsilyl)oxy)phenyl)boronic acid (CAS 929277-63-4)
- Azilsartan Ethyl Ester Impurity (CAS 1403474-70-3)
- 4-(1,3-Benzothiazol-2-ylsulfanyl)butanoic acid (CAS 80357-74-0)
- 2,2,2-Trifluoro-1-(4-methoxy-3-nitrophenyl)ethan-1-one (CAS 660848-62-4)
- Morpholine-4-carboxylic acid (CAS 50881-96-4 (free base))
- 3-Cyclopropylthiomorpholine (CAS 1344119-68-1)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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