2-chloro-8-methyl-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinoline CAS 1142201-67-9
| CAS No. | 1142201-67-9 |
| Molecular Formula | C18H12ClN3O |
| Molecular Weight | 321.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-chloro-8-methyl-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinoline 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.
2-chloro-8-methyl-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinoline (CAS 1142201-67-9), molecular formula C18H12ClN3O and molecular weight 321.76 g/mol, is a CATO reference standard with documented purity and traceability.
2-chloro-8-methyl-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinoline (C18H12ClN3O) contains a steroid core, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H12ClN3O |
| Molecular Weight | 321.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- Methyl 2-{[(5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)carbonyl]amino}-2-phenylacetate (CAS 1096440-16-2)
- N-(3-Chloro-4-methylphenyl)-3-(6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)propanamide (CAS 1105202-77-4)
- 3-(2-Chloro-7-methylquinolin-3-yl)-5-phenyl-1,2,4-oxadiazole (CAS 1142201-73-7)
- 7-Chloro-5-phenyl-2-(p-tolyl)oxazolo[4,5-d]pyrimidine (CAS 1225162-95-7)
- 7-Chloro-2-phenyl-5-(p-tolyl)oxazolo[4,5-d]pyrimidine (CAS 1241709-22-7)
- 1-(5-Chloro-2-methoxyphenyl)-3-(2-(dimethylamino)pyrimidin-5-yl)urea (CAS 1396873-69-0)
- Ethyl 5-chloro-6-((4-methoxybenzyl)amino)pyrimidine-4-carboxylate (CAS 1415562-75-2)
- 3-(2-Chloro-6-methylquinolin-3-yl)-5-phenyl-1,2,4-oxadiazole (CAS 1431728-48-1)
Recommended Standards
- Ethyl 2-[1-(3-chlorophenyl)-3,5-dimethyl-1h-pyrazol-4-yl]-2-(n-hydroxyimino)acetate (CAS 1006482-03-6)
- (2E)-2-(4-chlorobenzenesulfonyl)-3-(4-fluorophenyl)prop-2-enenitrile 691367-43-8 MS-11282 (CAS 691367-43-8)
- (3AR,4S,6R,6aS)-6-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxole-4-carbaldehyde (CAS 1379540-71-2)
- 1-(3-Chloro-4-fluorobenzenesulfonyl)piperidine-4-carboxylic acid (CAS 869472-74-2)
- 4-Bromo-N-methyl-N-phenylbenzamide (CAS 346690-27-5)
- 1,1,1-trifluoro-3-[(pyrimidin-2-ylamino)methylene]pentane-2,4-dione (CAS 649665-82-7)
- Difluoromethyl 3-methylphenyl sulphone (CAS 4837-16-5)
- (4-Chlorophenyl)(isoquinolin-1-yl)methanol (CAS 31101-09-4)
- 2-(4,5,6,7-Tetrahydro-[1,2,3]triazolo[1,5-a]pyridin-3-yl)aniline (CAS 1445792-55-1)
- 1-(4-bromophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1152504-87-4)
- (S)-4,4-difluoro-1-glycylpyrrolidine-2-carboxylic acid (CAS 2136761-11-8)
- N-(5,6-dimethyl-1-(3-methylbenzyl)-1H-benzo[d]imidazol-4-yl)-4-fluorobenzenesulfonamide (CAS 338423-33-9)
- 2-Methylbenzothiazole-4-carboxylic acid (CAS 1261595-76-9)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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