rel-ethyl (1R,2R)-2-fluoro-2-phenylcyclopropane-1-carboxylate CAS 309242-33-9
| CAS No. | 309242-33-9 |
| Molecular Formula | C12H13FO2 |
| Molecular Weight | 208.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 208.23 g/mol gives rel-ethyl (1R,2R)-2-fluoro-2-phenylcyclopropane-1-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
rel-ethyl (1R,2R)-2-fluoro-2-phenylcyclopropane-1-carboxylate (CAS 309242-33-9) is a high-purity analytical reference standard with the molecular formula C12H13FO2 and a molecular weight of 208.23 g/mol.
Structurally, rel-ethyl (1R,2R)-2-fluoro-2-phenylcyclopropane-1-carboxylate (C12H13FO2) 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 208.23 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures rel-ethyl (1R,2R)-2-fluoro-2-phenylcyclopropane-1-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H13FO2 |
| Molecular Weight | 208.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 2025 |
| Halogen Content | F-containing |
Recommended Standards
- Pertussis Toxin (islet-activating protein) (CAS 82248-93-9)
- Rel-ethyl (1R,2S)-2-fluoro-2-phenylcyclopropane-1-carboxylate (CAS 309242-37-3)
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- trans-2-(4-Fluoro-phenyl)-cyclopropanecarboxylic acid ethyl ester (CAS 70461-58-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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