(E)-2,3-Difluorobut-2-Enedioic Acid CAS 2714-32-1
| CAS No. | 2714-32-1 |
| Molecular Formula | C4H2F2O4 |
| Molecular Weight | 152.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-2,3-Difluorobut-2-Enedioic Acid (CAS 2714-32-1), molecular formula C4H2F2O4 and molecular weight 152.05 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (E)-2,3-Difluorobut-2-Enedioic Acid (C4H2F2O4) contains a carbohydrate-derived structure, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 152.05 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.
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), (E)-2,3-Difluorobut-2-Enedioic 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 | C4H2F2O4 |
| Molecular Weight | 152.05 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related E Standards
- Ethyl 4,4-difluorobut-2-enoate (CAS 1992-97-8)
- Ethyl 4,4-difluorobut-2-ynoate (CAS 129922-56-1)
- (E)-4,4-Difluorobut-2-enoic acid (CAS 37759-73-2)
- 4,4-Difluorobut-2-enoic acid (CAS 944328-71-6)
- 4,4-Difluorobut-2-ynoic acid (CAS 110680-65-4)
- 2,2-Difluorobut-3-en-1-ol (CAS 182439-31-2)
- 3-(1,1-Difluorobut-3-en-1-yl)-8-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 477889-55-7)
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