(1S,3r)-3-ethyl-3-fluorocyclobutane-1-carboxylic acid CAS 2090251-20-8
| CAS No. | 2090251-20-8 |
| Molecular Formula | C7H11FO2 |
| Molecular Weight | 146.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (1S,3r)-3-ethyl-3-fluorocyclobutane-1-carboxylic acid (C7H11FO2) 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 146.16 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.
CATO supplies (1S,3r)-3-ethyl-3-fluorocyclobutane-1-carboxylic acid (CAS 2090251-20-8), a certified reference material (molecular formula C7H11FO2, MW 146.16 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), (1S,3r)-3-ethyl-3-fluorocyclobutane-1-carboxylic 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 | C7H11FO2 |
| Molecular Weight | 146.16 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.) | 1997 |
| Halogen Content | F-containing |
Recommended Standards
- (1R,3s)-3-ethyl-3-fluorocyclobutane-1-carboxylic acid (CAS 2092452-65-6)
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