Ethyl oxazolo[4,5-b]pyridine-2-carboxylate CAS 93129-56-7
| CAS No. | 93129-56-7 |
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl oxazolo[4,5-b]pyridine-2-carboxylate (CAS 93129-56-7), molecular formula C9H8N2O3 and molecular weight 192.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H8N2O3, Ethyl oxazolo[4,5-b]pyridine-2-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 192.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Ethyl oxazolo[4,5-b]pyridine-2-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.
Physical & Chemical Properties
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | 192.17 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 3-Methyl-[1,2]oxazolo[5,4-b]pyridine-5-carbohydrazide (CAS 1097794-89-2)
- 2-Ethyl[1,3]oxazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-28-3)
- Ethyl oxazolo[4,5-c]pyridine-2-carboxylate (CAS 911465-02-6)
- 2-phenyl[1,3]oxazolo[4,5-b]pyridine (CAS 52333-44-5)
- Oxazolo[4,5-c]quinolin-2(3H)-one (CAS 59851-66-0)
- [1,2]oxazolo[4,3-c]quinolin-3-amine (CAS 1306605-49-1)
- 1-{3-methyl-[1,2]oxazolo[5,4-d]pyrimidin-4-yl}pyrrolidine (CAS 672925-37-0)
- 2-Methyl[1,3]oxazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-24-9)
Recommended Standards
- Ethyl benzo[c][1,2,5]oxadiazole-5-carboxylate (CAS 36389-07-8)
- Ethyl 9H-purine-6-carboxylate (CAS 40769-66-2)
- Furan-2-ylmethyl furan-2-carboxylate (CAS 615-11-2)
- Ethyl 5-cyano-6-hydroxynicotinate (CAS 74443-00-8)
- 3-Ethylazetidin-3-ol (CAS 935730-58-8)
- n-(4-Cyanophenyl)-3-(furan-2-yl)propanamide (CAS 1038032-58-4)
- (5-((4-Bromophenyl)sulfonyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 318469-36-2)
- 4-Phenyl-6-(1H-pyrrol-2-yl)-1,3,5-triazin-2(1H)-one (CAS 62460-53-1)
- 5-Cyano-2-fluorobenzeneboronic acid (CAS 468718-30-1)
- 9-Oxa-1-azaspiro[5.5]Undecane (CAS 53702-82-2)
- 951892-64-1 3-(2,4-Dichlorophenyl)-2-methyl-1-propene MFCD09801241 (CAS 951892-64-1)
- 7-Methoxy-1,9-dimethyl-9H-pyrido[3,4-b]indole (CAS 143502-37-8)
- XantPhos-Pd-G2 (CAS 1375325-77-1)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
Why CATO?
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