4-(4-Chloro-phenyl)-2-oxo-3-quinolin-2-yl-but-3-enoic acid CAS 473396-84-8
| CAS No. | 473396-84-8 |
| Molecular Formula | C19H12ClNO3 |
| Molecular Weight | 337.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-(4-Chloro-phenyl)-2-oxo-3-quinolin-2-yl-but-3-enoic acid 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.
CATO supplies 4-(4-Chloro-phenyl)-2-oxo-3-quinolin-2-yl-but-3-enoic acid (CAS 473396-84-8), a certified reference material (molecular formula C19H12ClNO3, MW 337.76 g/mol) for analytical method development and quality control.
4-(4-Chloro-phenyl)-2-oxo-3-quinolin-2-yl-but-3-enoic acid (C19H12ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H12ClNO3 |
| Molecular Weight | 337.76 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Methyl 2-({[(4Z)-1-(4-chlorophenyl)-3-ethoxy-5-oxo-4,5-dihydro-1H-pyrazol-4-ylidene]methyl}amino)acetate (CAS 338751-20-5)
- Oxamyl D3 (S-methyl D3) (CAS CATO-CCPD101959)
- N-(3-chlorophenyl)-2-((3-methyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040682-53-8)
- (4-Bromo-2,3-difluorophenyl)methanamine hydrochloride (CAS 1980086-47-2)
- 2-(4-((4-Iodophenyl)sulfonyl)piperazin-1-yl)-N-(4-methoxyphenyl)-6-methylpyrimidin-4-amine (CAS 946364-60-9)
- (r)-2-Amino-2-(3-chloro-4-fluorophenyl)ethan-1-ol (CAS 933786-63-1)
- 2,6-Bis(4-phenyl-4,5-dihydrooxazol-2-yl)pyridine (CAS 342043-03-2)
- 2,2,2-Trifluoro-4’-methoxyacetophenone (CAS 711-38-6)
- Sodium Bicarbonate-13C (CAS 87081-58-1)
- (2-Chloro-5-nitrophenyl)(4-methoxyphenyl)methanone (CAS 70132-87-5)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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