Ethyl 3-(2-chloropyridin-3-yl)-1,2,4-oxadiazole-5-carboxylate CAS 890095-91-7
| CAS No. | 890095-91-7 |
| Molecular Formula | C10H8ClN3O3 |
| Molecular Weight | 253.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethyl 3-(2-chloropyridin-3-yl)-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-(2-chloropyridin-3-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 890095-91-7), a certified reference material (molecular formula C10H8ClN3O3, MW 253.64 g/mol) for analytical method development and quality control.
Ethyl 3-(2-chloropyridin-3-yl)-1,2,4-oxadiazole-5-carboxylate (C10H8ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H8ClN3O3 |
| Molecular Weight | 253.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 1-(3-Chloropyridin-2-yl)-3-methoxy-1h-pyrazole-5-carboxylic acid (CAS 1122021-75-3)
- Ethyl 3-(2-chloropyridin-4-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 1219571-90-0)
- 3-(3-(2-Chloropyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 1255099-24-1)
- (6-Chloropyridin-3-yl)(3,4-difluorophenyl)methanone (CAS 1187169-69-2)
- (6-Chloropyridin-3-yl)(2,6-difluorophenyl)methanone (CAS 490038-59-0)
- 1-(6-Chloropyridin-2-yl)-N-methyl-4-nitro-1H-pyrazol-5-amine (CAS 318238-09-4)
- 3-[(6-chloropyridin-3-yl)methyl]-5,5-dimethylimidazolidine-2,4-dione (CAS 1016720-44-7)
- 1-(2-((5-Chloropyridin-2-yl)amino)thiazol-5-yl)ethan-1-one (CAS 952183-72-1)
Recommended Standards
- Ethyl 2-chloro-7-formylpyrrolo[2,1-f][1,2,4]triazine-4-carboxylate (CAS 2378265-71-3)
- Ethyl 3-amino-6-chloro-5-cyano-2-formylisonicotinate (CAS 99074-47-2)
- 8-Chloro-4-hydroxy-5-methoxyquinoline-3-carboxylic acid (CAS 63010-42-4)
- Ethyl 7-chloro-4-oxo-4H-pyrimido[1,2-b]pyridazine-3-carboxylate (CAS 30247-72-4)
- tert-Butyl 5-hydroxy-3-oxohexanoate (CAS 97037-72-4)
- 4-(1-Bromopropan-2-yl)-1,2-dimethoxybenzene (CAS 40181-03-1)
- 2-[(tert-Butyl)amino]acetyl chloride hydrochloride (CAS 915725-52-9)
- 4-(1H-Imidazol-4-yl)piperidine hydrochloride (CAS 155511-81-2)
- 7-bromo-1-methyl-pyrazolo[4,3-b]pyridine (CAS 1823268-58-1)
- 1-Allyl-2-(3-methoxyphenyl)-5,6,7,8-tetrahydroquinazoline-4(1H)-thione (CAS 831229-33-5)
- 4-Methoxy-6-methyl-1H-indazole (CAS 885522-40-7)
- Ivabradine impurity 60 (CAS CATO-C4X-111960)
- methyl 2-(5-amino-2-methylphenoxy)propanoate hydrochloride (CAS 1333744-17-4)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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