Ethyl 3-pyridin-3-yl-[1,2,4]oxadiazole-5-carboxylate CAS 163719-72-0
| CAS No. | 163719-72-0 |
| Molecular Formula | C10H9N3O3 |
| Molecular Weight | 219.20 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 3-pyridin-3-yl-[1,2,4]oxadiazole-5-carboxylate.
Ethyl 3-pyridin-3-yl-[1,2,4]oxadiazole-5-carboxylate (CAS 163719-72-0) is a high-purity analytical reference standard with the molecular formula C10H9N3O3 and a molecular weight of 219.20 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 3-pyridin-3-yl-[1,2,4]oxadiazole-5-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 3-pyridin-3-yl-[1,2,4]oxadiazole-5-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 | C10H9N3O3 |
| Molecular Weight | 219.20 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 3-(5-(Pyridin-2-yl)-1,2,4-oxadiazol-3-yl)propanoic acid (CAS 1082584-83-5)
- Ethyl 5-(pyridin-4-yl)-1,2,4-oxadiazole-3-carboxylate (CAS 151097-45-9)
- Ethyl 5-pyridin-3-yl-1,2,4-oxadiazole-3-carboxylate (CAS 151098-17-8)
- Ethyl 3-(pyridin-2-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 163719-76-4)
- Ethyl 3-(pyridin-4-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 163719-80-0)
- 2-[5-Oxo-1-(pyridin-2-yl)-2,5-dihydro-1h-pyrazol-3-yl]acetic acid (CAS 37959-19-6)
- 3-(3-(Pyridin-3-yl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 876716-11-9)
- 3-(3-(Pyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 328083-96-1)
Recommended Standards
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-1H-tetrazol-5-amine (CAS 162961-18-4)
- 1-(3-Nitrobenzyl)-1H-pyrazol-4-ol (CAS 1603412-28-7)
- 1-(4-Nitrobenzyl)-1H-pyrazol-4-ol (CAS 1598523-99-9)
- 2-(4-(5-Oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)phenyl)acetic acid (CAS 1695360-29-2)
- 2-(Benzylamino)-2-oxoethyl 2-(methylthio)nicotinate (CAS 380190-80-7)
- tert-Butyl 9-oxo-2-azaspiro[5.5]undecane-2-carboxylate (CAS 1434142-14-9)
- 5-Cyclopropoxy-2-methylbenzoic acid (CAS 1243472-48-1)
- Diethyl 6,7-dihydro-5H-cyclopenta[d]pyrimidine-2,4-dicarboxylate (CAS 117663-60-2)
- (R)-2-Amino-3-(2,3,4-trifluorophenyl)propanoic acid (CAS 1241678-44-3)
- Benzene, (1-methylethenyl)-, polymer with cyclopentene ann 1,3-pentadiene (CAS 58901-68-1)
- (2e)-3-{5-[(acetyloxy)methyl]furan-2-yl}prop-2-enoic acid (CAS 1415228-27-1)
- 3-(3-Methoxyphenyl)isoxazole (CAS 1093649-61-6)
- 2-Isopropyl-4-methylquinoline-3-carboxylic acid (CAS 1443288-49-0)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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