Ethyl 2-methyl-5-nitrofuran-3-carboxylate CAS 68967-34-0
| CAS No. | 68967-34-0 |
| Molecular Formula | C8H9NO5 |
| Molecular Weight | 199.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-methyl-5-nitrofuran-3-carboxylate.
Ethyl 2-methyl-5-nitrofuran-3-carboxylate (CAS 68967-34-0), molecular formula C8H9NO5 and molecular weight 199.16 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 2-methyl-5-nitrofuran-3-carboxylate (C8H9NO5) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Ethyl 2-methyl-5-nitrofuran-3-carboxylate 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 | C8H9NO5 |
| Molecular Weight | 199.16 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- Ethyl 2-(hydroxyamino)-4-oxo-1,4-dihydropyrimidine-5-carboxylate (CAS 660850-30-6)
- Ethyl 4-methyl-5-nitrofuran-3-carboxylate (CAS 758725-88-1)
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