1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide CAS 164261-17-0
| CAS No. | 164261-17-0 |
| Molecular Formula | C21H14ClN3O3 |
| Molecular Weight | 391.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide (CAS 164261-17-0), a certified reference material (molecular formula C21H14ClN3O3, MW 391.81 g/mol) for analytical method development and quality control.
Structurally, 1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide (C21H14ClN3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 391.81 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 1-(2-Chloro-4-hydroxyphenyl)-4-oxo-7-(pyridin-4-yl)-1,4-dihydroquinoline-3-carboxamide 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 | C21H14ClN3O3 |
| Molecular Weight | 391.81 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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