4-Chloro-2-oxo-1,2-dihydroquinoline-3-carbonitrile CAS 680210-85-9
| CAS No. | 680210-85-9 |
| Molecular Formula | C10H5ClN2O |
| Molecular Weight | 204.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Chloro-2-oxo-1,2-dihydroquinoline-3-carbonitrile (CAS 680210-85-9) is a high-purity analytical reference standard with the molecular formula C10H5ClN2O and a molecular weight of 204.61 g/mol.
Based on its molecular formula C10H5ClN2O, 4-Chloro-2-oxo-1,2-dihydroquinoline-3-carbonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4-Chloro-2-oxo-1,2-dihydroquinoline-3-carbonitrile 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.
Physical & Chemical Properties
| Molecular Formula | C10H5ClN2O |
| Molecular Weight | 204.61 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-(4-Chloro-3-nitro-1h-pyrazol-1-yl)propan-1-amine (CAS 1006962-60-2)
- 4-Chloro-7-hydroxyquinoline-3-carbonitrile (CAS 1017788-66-7)
- 2-(4-Chloro-1H-pyrazol-1-yl)-3-methoxypropanoic acid (CAS 1239788-10-3)
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- 2-(3-Chloro-4-hydroxybenzylidene)malononitrile (CAS 159102-16-6)
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Recommended Standards
- 4-Chloro-2-(2-hydroxyethyl)-5-methoxypyridazin-3(2H)-one (CAS 898261-83-1)
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- 3-Ethyl-2,4-dioxotetrahydropyrimidine-1(2H)-carbonyl chloride (CAS 72820-56-5)
- 5-(Chloromethyl)isoxazol-3-yl dimethylcarbamate (CAS 83014-79-3)
- Ethyl 2-(4-((2-methyl-1H-imidazol-1-yl)methyl)piperidin-1-yl)acetate (CAS 1421485-53-1)
- tert-Butyl (2-allylphenyl)carbamate (CAS 309974-70-7)
- 1-Chloro-5-methoxynaphthalene (CAS 61735-52-2)
- 1-(4-Isopropylphenyl)-1-(1H-pyrrol-2-yl)ethan-1-ol (CAS 944698-52-6)
- 5-(Bromomethyl)-1-chloro-2-ethoxy-3-fluorobenzene (CAS 1017778-91-4)
- 4-(3-Bromophenyl)-3-methylbutan-2-ol (CAS 1225486-54-3)
- 4-(2,4-Dichlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 844443-85-2)
- 2-((2,5-Difluorophenoxy)methyl)benzaldehyde (CAS 1443348-48-8)
- 3-(2-Cyanophenyl)-N,N-dimethylbenzamide (CAS 1365271-34-6)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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