3-(2-Chloro-7-methylquinolin-3-yl)-5-methyl-1,2,4-oxadiazole CAS 1142201-75-9
| CAS No. | 1142201-75-9 |
| Molecular Formula | C13H10ClN3O |
| Molecular Weight | 259.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2-Chloro-7-methylquinolin-3-yl)-5-methyl-1,2,4-oxadiazole (CAS 1142201-75-9) is a high-purity analytical reference standard with the molecular formula C13H10ClN3O and a molecular weight of 259.69 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(2-Chloro-7-methylquinolin-3-yl)-5-methyl-1,2,4-oxadiazole is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 259.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H10ClN3O |
| Molecular Weight | 259.69 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-4-(imidazo[1,2-a]pyridin-7-yloxy)aniline (CAS 1033810-67-1)
- n-(2-Chloro-4,5-dimethoxyphenyl)-2-methoxyacetamide (CAS 1119248-47-3)
- 5-Chloro-3-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidine (CAS 1201785-05-8)
- 2-Chloro-N-(2,4,6-trimethoxyphenyl)acetamide (CAS 1245796-20-6)
- 4-Chloro-2-(3-methoxyphenyl)pyrazolo[1,5-a]pyrazine (CAS 1255783-50-6)
- 4-Chloro-4'-hydroxy-3'-methoxy-[1,1'-biphenyl]-3-carbonitrile (CAS 1261901-36-3)
- 5-Chloro-3-phenyl-3,4-dihydropyrido[2,3-d]pyrimidin-2(1H)-one (CAS 1265634-97-6)
- 5-Benzyl-2-chloro-3H-pyrrolo[3,2-d]pyrimidin-4(5H)-one (CAS 129872-86-2)
Recommended Standards
- 1-(4-chlorophenyl)-3-(furan-2-yl)-1H-pyrazol-5-amine (CAS 1154567-07-3)
- 2-(4-Chlorophenyl)-7-methylimidazo[1,2-a]pyrimidin-5(8H)-one (CAS 108847-71-8)
- 2-(2-Chloropyridin-3-yl)-5-methoxy-1H-benzo[d]imidazole (CAS 1196152-44-9)
- 5-((2-Chloropyrimidin-4-yl)oxy)-2-methyl-1H-indole (CAS 1071105-16-2)
- 2-Acetamido-4-amino-4-oxobutanoic acid (CAS 16473-76-0)
- 2-[(3-amino-1H-1,2,4-triazol-5-yl)sulfanyl]butanoic acid hydrochloride (CAS 1803585-96-7)
- Octahydrocyclopenta[c]pyrrole-4-carboxylic acid (CAS 1334147-36-2)
- 2641AF 3,6-Dimethyl-isoxazolo[5,4-b]pyridine-4-carboxylic acid 900136-98-3 C9H8N2O3 (CAS 900136-98-3)
- Dl-cystinehydrochloride (CAS 90350-38-2)
- 1-(2-Cyclopropyl-6-(trifluoromethyl)pyrimidin-4-yl)piperidin-4-amine (CAS 1708268-59-0)
- 1-(5-amino-3-bromo-1,2-thiazol-4-yl)ethan-1-one (CAS 58955-43-4)
- 4-Phenyl-3-((m-tolyloxy)methyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 55045-12-0)
- 1217830-18-6 1326AD C20H19NO6 Fmoc-alpha-methyl-L-aspartic acid (CAS 1217830-18-6)
- Insulin B (22-25) (CAS 34367-73-2)
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