7-Chloro-2-(4-methoxy-2-methylphenyl)-2,3-dihydropyridazino[4,5-b]quinoline-1,4,10(5H)-trione CAS 170142-20-8
| CAS No. | 170142-20-8 |
| Molecular Formula | C19H14ClN3O4 |
| Molecular Weight | 383.79 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.
7-Chloro-2-(4-methoxy-2-methylphenyl)-2,3-dihydropyridazino[4,5-b]quinoline-1,4,10(5H)-trione (CAS 170142-20-8) is a high-purity analytical reference standard with the molecular formula C19H14ClN3O4 and a molecular weight of 383.79 g/mol.
Based on its molecular formula C19H14ClN3O4, 7-Chloro-2-(4-methoxy-2-methylphenyl)-2,3-dihydropyridazino[4,5-b]quinoline-1,4,10(5H)-trione contains a flavonoid core, 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 383.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 7-Chloro-2-(4-methoxy-2-methylphenyl)-2,3-dihydropyridazino[4,5-b]quinoline-1,4,10(5H)-trione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H14ClN3O4 |
| Molecular Weight | 383.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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- 1-Ethyl-3,5-difluorobenzene (CAS 117358-52-8)
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