Diethyl 2-fluoro-2-(hydroxymethyl)malonate CAS 756-31-0
| CAS No. | 756-31-0 |
| Molecular Formula | C8H13FO5 |
| Molecular Weight | 208.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-fluoro-2-(hydroxymethyl)malonate (CAS 756-31-0) is a high-purity analytical reference standard with the molecular formula C8H13FO5 and a molecular weight of 208.18 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, Diethyl 2-fluoro-2-(hydroxymethyl)malonate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Diethyl 2-fluoro-2-(hydroxymethyl)malonate 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 | C8H13FO5 |
| Molecular Weight | 208.18 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
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