Ethyl 5-Methyl-1,2,4-oxadiazole-3-carboxylate CAS 40699-38-5
| CAS No. | 40699-38-5 |
| Molecular Formula | C6H8N2O3 |
| Molecular Weight | 156.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 5-Methyl-1,2,4-oxadiazole-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.
CATO supplies Ethyl 5-Methyl-1,2,4-oxadiazole-3-carboxylate (CAS 40699-38-5), a certified reference material (molecular formula C6H8N2O3, MW 156.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H8N2O3, Ethyl 5-Methyl-1,2,4-oxadiazole-3-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O3 |
| Molecular Weight | 156.14 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.) | 1968 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 5-methyl-1,2,3-oxadiazole-4-carboxylate (CAS 799257-45-7)
- Ethyl 5-Methyl-1,3,4-oxadiazole-2-carboxylate (CAS 37641-36-4)
- Ethyl 5-Hydroxy-1H-pyrazole-3-carboxylate (CAS 85230-37-1)
- Ethyl 5-oxo-2,5-dihydro-1H-imidazole-4-carboxylate (CAS 952734-99-5)
- N-Ethyl-2-methylbenzamide (CAS 57056-81-2)
- 1-(4-Hydroxy-6-methylpyridin-2-yl)ethan-1-one (CAS 1393530-12-5)
- 2-Fluoro-1-methoxy-3-phenylbenzene (CAS 1214323-41-7)
- 2-Methyl-7-nitrobenzo[d]oxazole (CAS 74255-38-2)
- N-cyclohexyl-1H-benzo[d]imidazol-2-amine (CAS 83792-76-1)
- 4-(4-Methoxyphenyl)-2-(methylthio)pyrimidine (CAS 148990-17-4)
- 2-(4-(Pyrrolidin-1-yl)phenyl)acetic acid (CAS 26586-36-7)
- Isovitexin 2''-O-arabinoside (CAS 53382-71-1)
- (R)-(+)-SKF-38393 Hydrochloride (CAS 81702-42-3)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
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