5-(2-Chloropyridin-3-yl)-3-cyclopropyl-1,2,4-oxadiazole CAS 1239747-93-3
| CAS No. | 1239747-93-3 |
| Molecular Formula | C10H8ClN3O |
| Molecular Weight | 221.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 5-(2-Chloropyridin-3-yl)-3-cyclopropyl-1,2,4-oxadiazole (CAS 1239747-93-3), a certified reference material (molecular formula C10H8ClN3O, MW 221.64 g/mol) for analytical method development and quality control.
5-(2-Chloropyridin-3-yl)-3-cyclopropyl-1,2,4-oxadiazole (C10H8ClN3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H8ClN3O |
| Molecular Weight | 221.64 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloropyridin Standards
- 2-(2-Chloropyridin-4-yl)-6-methylpyrimidin-4(3H)-one (CAS 1258640-22-0)
- 4-((5-Chloropyridin-2-yl)oxy)phenol (CAS 60075-01-6)
- 5-(6-Chloropyridin-3-yl)-4,6-diazaspiro[2.4]Hept-4-en-7-one (CAS 2168370-91-8)
- (2-Chloropyridin-3-yl)methyl methanesulfonate (CAS 166770-75-8)
- (5-Chloropyridin-2-yl)methyl methanesulfonate (CAS 864758-02-1)
- N-(6-chloropyridin-3-yl)-n-methylmethanesulfonamide (CAS 143937-71-7)
- 1-((6-Chloropyridin-3-yl)methyl)pyridin-2(1H)-one (CAS 1016532-77-6)
- 1-(5-Chloropyridin-2-yl)-5-methyl-1h-pyrrole-2-carbaldehyde (CAS 931985-67-0)
Recommended Standards
- 6-Chloroquinoline-3-carbohydrazide (CAS 1239727-47-9)
- 5-Chloro-6-methyl-2-(pyridin-4-yl)pyrimidin-4-ol (CAS 1239786-71-0)
- 2-Chloro-4-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)pyridine (CAS 1239720-86-5)
- 2-Chloro-4-methylquinoline-7-carboxylic acid (CAS 124307-93-3)
- 3-Chloro-2-(1H-pyrrol-1-yl)-5-(trifluoromethyl)pyridine (CAS 287978-92-1)
- 5-(2,4-Dimethylphenyl)oxazole-4-carboxylic acid (CAS 89205-05-0)
- tert-Butyl 3-(3-aminophenyl)azetidine-1-carboxylate (CAS 916421-38-0)
- 2-(4-Methylpiperazin-1-yl)-N-(4-nitrophenyl)acetamide (CAS 708279-23-6)
- 5-Bromo-N-(2-cyanoethyl)-N,2-dimethylbenzenesulfonamide (CAS 923252-06-6)
- 2-(But-3-yn-1-ylamino)-4-methylbenzoic acid (CAS 1341513-81-2)
- Benzyl 2,4-dihydroxypyrimidine-5-carboxylate (CAS 65906-61-8)
- Ethyl 4-benzylpiperazine-1-carboxylate (CAS 59325-12-1)
- Methyl 4-(4-aminophenyl)piperazine-1-carboxylate (CAS 662246-30-2)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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