Diethyl 4,5-dihydroisoxazole-3,5-dicarboxylate CAS 40435-26-5
| CAS No. | 40435-26-5 |
| Molecular Formula | C9H13NO5 |
| Molecular Weight | 215.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 215.20 g/mol gives Diethyl 4,5-dihydroisoxazole-3,5-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Diethyl 4,5-dihydroisoxazole-3,5-dicarboxylate (CAS 40435-26-5) is a high-purity analytical reference standard with the molecular formula C9H13NO5 and a molecular weight of 215.20 g/mol.
Diethyl 4,5-dihydroisoxazole-3,5-dicarboxylate (C9H13NO5) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Diethyl 4,5-dihydroisoxazole-3,5-dicarboxylate 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 | C9H13NO5 |
| Molecular Weight | 215.20 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-(Trifluoromethyl)benzoxazol-2(3H)-one (CAS 14733-68-7)
- Platinum,bis(3-amino-2H-1-benzopyran-2-one-N)[diethylpropanedioato(2-)-O,O']- (CAS 79170-45-9)
- 4-Chloro-5-methoxy-2-(pyridin-4-yl)pyrimidine (CAS 133661-38-8)
- (3-(1-((2-Fluoro-[1,1'-biphenyl]-4-yl)oxy)ethyl)-1H-pyrazol-1-yl)(4-fluorophenyl)methanone (CAS 477709-66-3)
- 1-Ethyl-5-methyl-4-phenyl-1H-imidazol-2(5H)-one (CAS 71624-03-8)
- Urotensin II-Related Peptide (human, mouse, rat) (CAS 342878-90-4)
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