2-(2,4-Difluorophenyl)-2-methylpropanoic acid CAS 920501-67-3
| CAS No. | 920501-67-3 |
| Molecular Formula | C10H10F2O2 |
| Molecular Weight | 200.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 200.18 g/mol gives 2-(2,4-Difluorophenyl)-2-methylpropanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(2,4-Difluorophenyl)-2-methylpropanoic acid (CAS 920501-67-3), a certified reference material (molecular formula C10H10F2O2, MW 200.18 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 2-(2,4-Difluorophenyl)-2-methylpropanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H10F2O2 |
| Molecular Weight | 200.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1987 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 2-(2,3-Difluorophenyl)-2-methylpropanoic acid (CAS 1035261-36-9)
- 3-(3,4-Difluorophenyl)butanoic acid (CAS 1042641-92-8)
- 3-(2,4-Difluorophenyl)butanoic acid (CAS 1042815-69-9)
- 4-(2,4-Difluorophenyl)butanoic acid (CAS 110931-78-7)
- 2-(2,6-Difluorophenyl)-2-methylpropanoic acid (CAS 1216838-87-7)
- 2-(3,5-Difluorophenyl)butanoic acid (CAS 1225522-69-9)
- 2-(3,4-Difluorophenyl)butanoic acid (CAS 1226167-09-4)
- Methyl 2-(3,5-difluorophenyl)propanoate (CAS 1248159-75-2)
Recommended Standards
- 2-(2,4-Difluorophenyl)-2-methyl-1,3-dioxolane (CAS 882406-40-8)
- 2-(2,5-Difluorobenzyl)-1,3-dioxolane (CAS 842123-88-0)
- 2-(2,4-Difluorobenzyl)-1,3-dioxolane (CAS 842124-12-3)
- 2-(2,6-Difluorophenyl)butanoic acid (CAS 359828-70-9)
- 3-Chlorobenzo[4,5]imidazo[1,2-a]pyrimidine (CAS 959245-17-1)
- Meprobamate-β-D-Glucuronide Sodium Salt (CAS 15060-28-3)
- 2-Acrylamido-2-phenylacetic acid (CAS 173947-32-5)
- 5-O-DMT-2-3-anhydrothymidine (CAS 191474-13-2)
- (S)-1,2-Dimethyl-3-(naphthalen-2-yl)-2,5-dihydro-1H-pyrrole (CAS 823178-95-6)
- (2-Bromo-4-(piperidin-1-yl)phenyl)boronic acid (CAS 2225181-63-3)
- 2-(4-Dipropylaminophenylazo)benzoic acid (CAS 2641-01-2)
- 2-Methyl-N-((1-methyl-1h-pyrazol-4-yl)methyl)pyridin-3-amine (CAS 1509876-45-2)
- Methyl 3-(Boc-amino)-1-benzylpyrrolidine-3-carboxylate (CAS 675834-17-0)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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