Ethyl 4,5-dioxopyrrolidine-3-carboxylate CAS 59226-20-9
| CAS No. | 59226-20-9 |
| Molecular Formula | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 4,5-dioxopyrrolidine-3-carboxylate (CAS 59226-20-9) is a high-purity analytical reference standard with the molecular formula C7H9NO4 and a molecular weight of 171.15 g/mol.
Ethyl 4,5-dioxopyrrolidine-3-carboxylate (C7H9NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C7H9NO4 |
| Molecular Weight | 171.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- ethyl 2,5-dioxopyrrolidine-3-carboxylate (CAS 96905-68-9)
- 2,5-Dioxopyrrolidine-3-sulfonic acid (CAS 144285-93-8)
- 2,5-Dioxopyrrolidine-1-carbothioamide (CAS 37454-84-5)
- Methyl 2,4-dioxopyrrolidine-1-carboxylate (CAS 182352-62-1)
- methyl 2,4-dioxopyrrolidine-3-carboxylate (CAS 51925-57-6)
- Butyl 2,5-dioxopyrrolidine-1-carboxylate (CAS 6946-92-5)
- 2,5-Dioxopyrrolidine-3-carboxylic acid (CAS 96905-69-0)
- 1-Ethyl-2,5-dioxopyrrolidine-3-sulfonic acid (CAS 779266-58-9)
Recommended Standards
- Ethyl 3-methoxyisoxazole-4-carboxylate (CAS 2110239-88-6)
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- Ethyl 3-(hydroxymethyl)isoxazole-4-carboxylate (CAS 2336933-40-3)
- Ethyl 4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-3-carboxylate (CAS 772317-09-6)
- Ethyl 4-(4-chlorophenoxy)butanoate (CAS 59227-79-1)
- Methyl (E)-3-((2-(3-methyl-4-nitroisoxazol-5-yl)vinyl)amino)thiophene-2-carboxylate (CAS 240799-51-3)
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- 5-(1H-Pyrrol-1-yl)-1-[4-(trifluoromethoxy)phenyl]-1H-pyrazole-4-carboxylic acid (CAS 1232794-76-1)
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- Methyl 4-amino-5,6-dihydro-2H-pyran-3-carboxylate (CAS 1542711-49-8)
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