3-(2-Chlorophenyl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one CAS 302953-05-5
| CAS No. | 302953-05-5 |
| Molecular Formula | C16H8ClF3O3 |
| Molecular Weight | 340.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-(2-Chlorophenyl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one 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.
3-(2-Chlorophenyl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one (CAS 302953-05-5), molecular formula C16H8ClF3O3 and molecular weight 340.68 g/mol, is a CATO reference standard with documented purity and traceability.
3-(2-Chlorophenyl)-7-hydroxy-2-(trifluoromethyl)-4h-chromen-4-one (C16H8ClF3O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C16H8ClF3O3 |
| Molecular Weight | 340.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one (CAS 302953-04-4)
- 2-((4-Chlorophenyl)thio)-3-(trifluoromethyl)quinoxaline (CAS 321433-72-1)
- 2-[(2-Chlorophenyl)sulfanyl]-3-(trifluoromethyl)quinoxaline (CAS 338773-65-2)
- 5-(2-(4-Chlorophenyl)-2-oxoethylidene)-2-imino-3-(o-tolyl)oxazolidin-4-one (CAS 122975-87-5)
- (E)-{1-[3-(4-chlorophenyl)-1,2-oxazol-5-yl]ethylidene}amino benzoate (CAS 478066-78-3)
- 1-(3-Chlorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazole-4-carbaldehyde (CAS 618101-74-9)
- 1-(4-Chlorophenyl)-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-pyrazole-4-carbaldehyde (CAS 618099-01-7)
- 2-((4-Chlorophenyl)thio)-N-(4-fluoro-3-nitrophenyl)acetamide (CAS 532960-93-3)
Recommended Standards
- 2-(8-Chloro-6-(trifluoromethyl)imidazo[1,2-a]pyridin-2-yl)benzoic acid (CAS 900015-43-2)
- 2-(2H-1,3-Benzodioxol-5-yl)-8-chloro-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 866145-66-6)
- 4-(Cyanomethyl)phenyl 2-chloro-4-(trifluoromethyl)nicotinate (CAS 288246-18-4)
- 2-(6-Chloro-4-trifluoromethyl-pyridin-2-ylmethyl)-isoindole-1,3-dione (CAS 1311278-13-3)
- 2-(3-Pyrrolidinyl)acetamide Trifluoroacetate (CAS 1989672-63-0)
- 3-Methyl-2-(1-Piperidin-1-yl)butyronitrile hydrochloride (CAS 1672675-20-5)
- 2-Iodo-N,N-dimethylbenzamide (CAS 54616-46-5)
- Sotagliflozin Impurity 8 (CAS CATO-C4X-30048)
- Polaprezinc impurity 24 (CAS CATO-C4X-182124)
- 2,6-Dichloroaniline-3,4,5-d3 (CAS 77435-48-4)
- N-(5-(1-(2,6-Dichlorophenyl)-3-(difluoromethyl)-1H-pyrazol-5-yl)thiazol-2-yl)isobutyramide (CAS 1338247-35-0)
- Tolmetin Impurity 6 (CAS 33369-52-7)
- 1-Bromo-2-chloro-4,5-dimethylbenzene (CAS 500536-40-3)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
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