Perfluorobutanoic acid sodium CAS 2218-54-4
| CAS No. | 2218-54-4 |
| Molecular Formula | C4F7O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 236.02 g/mol gives Perfluorobutanoic acid sodium distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Perfluorobutanoic acid sodium (CAS 2218-54-4) is a high-purity analytical reference standard with the molecular formula C4F7O2Na and a molecular weight of 236.02 g/mol.
Structurally, Perfluorobutanoic acid sodium (C4F7O2Na) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.5, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 236.02 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.
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 | C4F7O2 Na |
| Molecular Weight | 236.02 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 1.5 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
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