7,8-Dichloro-1,2-dihydroquinolin-2-one CAS 1339813-01-2
| CAS No. | 1339813-01-2 |
| Molecular Formula | C9H5Cl2NO |
| Molecular Weight | 214.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 7,8-Dichloro-1,2-dihydroquinolin-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
7,8-Dichloro-1,2-dihydroquinolin-2-one (CAS 1339813-01-2), molecular formula C9H5Cl2NO and molecular weight 214.05 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 7,8-Dichloro-1,2-dihydroquinolin-2-one 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 | C9H5Cl2NO |
| Molecular Weight | 214.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-Amino-5,7-dichloro-1,8-naphthyridine (CAS 131998-24-8)
- 6,7-Dichloroquinolin-2(1H)-one (CAS 136472-34-9)
- 5-Chloro-3-(4-chlorophenyl)-1h-1,2,4-triazole (CAS 1315370-96-7)
- 5-(3,4-Dichlorophenyl)isoxazole (CAS 138716-63-9)
- N-(4-Amino-2-methoxyphenyl)propionamide hydrochloride (CAS 1609407-27-3)
- 5-(4-Hydroxyphenyl)-2-furaldehyde (CAS 13130-10-4)
- (5-(4-Chlorophenyl)-1H-imidazol-2-yl)methanamine dihydrochloride (CAS 1311317-73-3)
- Relugolix Impurity 179 (CAS CATO-C4X-2429179)
- (5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 897533-18-5)
- 1-3-4-6-Tetra-O-acetyl-2-azido-2-deoxy-β-D-glucopyranose (CAS 80321-89-7)
- 2,5-Dimethyl-1-(3-morpholinopropyl)-1H-pyrrole-3-carbaldehyde (CAS 887694-87-3)
- 3-Fluoro-5-(piperidin-3-yl)pyridine (CAS 1260864-37-6)
- 5-Amino-2-ethyl-7-methylisoindolin-1-one (CAS 1356066-75-5)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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