Ethyl 3-ethyl-1,2,4-oxadiazole-5-carboxylate CAS 139443-40-6
| CAS No. | 139443-40-6 |
| Molecular Formula | C7H10N2O3 |
| Molecular Weight | 170.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 3-ethyl-1,2,4-oxadiazole-5-carboxylate 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.
CATO supplies Ethyl 3-ethyl-1,2,4-oxadiazole-5-carboxylate (CAS 139443-40-6), a certified reference material (molecular formula C7H10N2O3, MW 170.17 g/mol) for analytical method development and quality control.
Ethyl 3-ethyl-1,2,4-oxadiazole-5-carboxylate (C7H10N2O3) 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.
Physical & Chemical Properties
| Molecular Formula | C7H10N2O3 |
| Molecular Weight | 170.17 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.) | 1996 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-(2-Aminopropan-2-yl)-1,2,4-oxadiazole-5-carboxamide (CAS 1394041-62-3)
- N-((3-Methyl-1,2,4-oxadiazol-5-yl)methoxy)acetimidamide (CAS 139698-05-8)
- 2-Methoxy-1-(methoxymethyl)-1H-imidazole-5-carbaldehyde (CAS 1393575-48-8)
- 3-Acetyl-1-(2-hydroxyethyl)-1H-pyrazol-5(4H)-one (CAS 139767-79-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com