4-(2,5-Difluorophenyl)-4-oxobutanoic acid CAS 871127-78-5
| CAS No. | 871127-78-5 |
| Molecular Formula | C10H8F2O3 |
| Molecular Weight | 214.17 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 4-(2,5-Difluorophenyl)-4-oxobutanoic acid (CAS 871127-78-5), a certified reference material (molecular formula C10H8F2O3, MW 214.17 g/mol) for analytical method development and quality control.
Structurally, 4-(2,5-Difluorophenyl)-4-oxobutanoic acid (C10H8F2O3) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 214.17 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), 4-(2,5-Difluorophenyl)-4-oxobutanoic 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 | C10H8F2O3 |
| Molecular Weight | 214.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- Methyl 3-(2,6-difluorophenyl)-3-oxopropanoate (CAS 106816-08-4)
- 2-(2-(3,4-Difluorophenyl)hydrazono)propanoic acid (CAS 1245652-55-4)
- Methyl 3-(2,5-Difluorophenyl)-3-oxopropionate (CAS 1268103-31-6)
- Methyl 3-(3,5-Difluorophenyl)-3-oxopropionate (CAS 1530834-98-0)
- Ethyl 2-(2,4-difluorophenyl)-2-oxoacetate (CAS 157372-95-7)
- Methyl 3-(2,4-Difluorophenyl)-3-oxopropionate (CAS 185302-85-6)
- 4-(2,3-Difluorophenyl)-4-oxobutyric acid (CAS 898766-11-5)
- 4-(3,4-Difluorophenyl)-4-oxobutyric acid (CAS 84313-94-0)
Recommended Standards
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- 4-[4-(Piperidinocarbonyl)phenyl]benzaldehyde (CAS 1393442-40-4)
- (2R,3S)-3-((tert-Butoxycarbonyl)amino)-2-hydroxy-4-phenylbutanoic acid (CAS 105181-72-4)
- 5,7-dimethyl-3H-imidazo[4,5-b]pyridine (CAS 116599-55-4)
- 2-[2-phenyl-4-(thiophen-2-yl)-1,3-thiazol-5-yl]acetic acid (CAS 23821-62-7)
- Biotinyl-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 213779-13-6)
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