5,6-Difluoropyrimidine-2,4(1H,3H)-dione CAS 24824-12-2
| CAS No. | 24824-12-2 |
| Molecular Formula | C4H2F2N2O2 |
| Molecular Weight | 148.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5,6-Difluoropyrimidine-2,4(1H,3H)-dione 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.
5,6-Difluoropyrimidine-2,4(1H,3H)-dione (CAS 24824-12-2) is a high-purity analytical reference standard with the molecular formula C4H2F2N2O2 and a molecular weight of 148.07 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 5,6-Difluoropyrimidine-2,4(1H,3H)-dione is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C4H2F2N2O2 |
| Molecular Weight | 148.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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