2,2-Difluoro-1-methylcyclopropanecarboxylic Acid CAS 128073-33-6
| CAS No. | 128073-33-6 |
| Molecular Formula | C5H6F2O2 |
| Molecular Weight | 136.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2,2-Difluoro-1-methylcyclopropanecarboxylic Acid (CAS 128073-33-6), molecular formula C5H6F2O2 and molecular weight 136.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,2-Difluoro-1-methylcyclopropanecarboxylic Acid (C5H6F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 136.10 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2,2-Difluoro-1-methylcyclopropanecarboxylic 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 | C5H6F2O2 |
| Molecular Weight | 136.10 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) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,2-Difluoro-3-methylcyclopropane-1-carboxylic acid (CAS 1334146-46-1)
- 2,2-Difluoro-cyclopropanecarboxylic acid methyl ester (CAS 1823877-22-0)
- 1,3-Difluoro-2,4-pentanedione (CAS 87498-27-9)
- 2,2-Difluoro-4-pentenoic Acid (CAS 55039-89-9)
- rel-2,2-Difluoro-3-methylcyclopropane-1-carboxylic acid (CAS 2247657-28-7)
- 3,3-Difluoro-1-(2-hydroxyethyl)cyclobutane (CAS 1056467-54-9)
- (2,2-Difluoro-3,3-dimethylcyclopropyl)methanol (CAS 131262-12-9)
- (3,3-difluoro-1-methylcyclobutyl)methanol (CAS 1408076-35-6)
Recommended Standards
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