4,4-Difluoro-2-methylbutanoic acid CAS 1010422-68-0
| CAS No. | 1010422-68-0 |
| Molecular Formula | C5H8F2O2 |
| Molecular Weight | 138.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 138.11 g/mol gives 4,4-Difluoro-2-methylbutanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,4-Difluoro-2-methylbutanoic acid (CAS 1010422-68-0) is a high-purity analytical reference standard with the molecular formula C5H8F2O2 and a molecular weight of 138.11 g/mol.
4,4-Difluoro-2-methylbutanoic acid (C5H8F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4,4-Difluoro-2-methylbutanoic 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 | C5H8F2O2 |
| Molecular Weight | 138.11 g/mol |
| 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 3,3-difluoro-2,2-dimethylpropanoic acid (CAS 1022154-50-2)
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- 4,4-Difluoro-3-methylbutanoic acid (CAS 1785096-82-3)
- [2,2-Difluoro-1-(hydroxymethyl)cyclopropyl]methanol (CAS 228580-15-2)
- 3,3-Difluoro-1-(hydroxymethyl)cyclobutan-1-ol (CAS 2231674-33-0)
- Methyl 3,3-difluoro-2-oxopropanoate (CAS 139704-68-0)
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