Diethyl 2,3-difluoromaleate CAS 815-97-4
| CAS No. | 815-97-4 |
| Molecular Formula | C8H10F2O4 |
| Molecular Weight | 208.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Diethyl 2,3-difluoromaleate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Diethyl 2,3-difluoromaleate (CAS 815-97-4) is a high-purity analytical reference standard with the molecular formula C8H10F2O4 and a molecular weight of 208.16 g/mol.
Based on its molecular formula C8H10F2O4, Diethyl 2,3-difluoromaleate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Diethyl 2,3-difluoromaleate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H10F2O4 |
| Molecular Weight | 208.16 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 | 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 |
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Recommended Standards
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- 5,7-Difluoronaphthalene-1-carboxylic acid, 97% (CAS 405196-34-1)
- 2-Oxepanone, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 26761-25-1)
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- 1-(2,6-Dichloropyridin-4-yl)ethan-1-ol (CAS 1668587-18-5)
- Tofacitinib Impurity 11 (CAS 2227197-38-6)
- 2-n-Phenylpyridine-2,3-diamine (CAS 41010-49-5)
- 4,6-Dichloro-2-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 22277-09-4)
- 3-Iodo-2-(trifluoromethyl)aniline (CAS 1261645-04-8)
- 3-Amino-5-(difluoromethyl)-1H-1,2,4-triazole (CAS 461430-01-3)
- N-BOC-N-(2-CYANOETHYL) GLYCINE ETHYL ESTER (CAS 266353-18-8)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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