3-(4-Ethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one CAS 459419-21-7
| CAS No. | 459419-21-7 |
| Molecular Formula | C18H13F3O4 |
| Molecular Weight | 350.29 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.
CATO supplies 3-(4-Ethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one (CAS 459419-21-7), a certified reference material (molecular formula C18H13F3O4, MW 350.29 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution, 3-(4-Ethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 350.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 3-(4-Ethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-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 | C18H13F3O4 |
| Molecular Weight | 350.29 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-containing |
Related Ethylphenoxy Standards
- 5-((4-Ethylphenoxy)methyl)-4-(6-methylheptan-2-yl)-4h-1,2,4-triazole-3-thiol (CAS 748778-09-8)
- N-(2-(2-(4-ethylphenoxy)acetyl)hydrazine-1-carbonothioyl)benzamide (CAS 648860-89-3)
- N-[2-(4-Ethylphenoxy)ethyl]-4-(tetrahydro-2-furanylmethoxy)aniline (CAS 1040690-52-5)
- 2-(2-(4-Ethylphenoxy)acetyl)-N-(4-methoxyphenyl)hydrazine-1-carbothioamide (CAS 903833-89-6)
- 2-(2-((4-Ethylphenoxy)methyl)phenyl)thiazole-4-carboxylic acid (CAS 1176783-09-7)
- 2-(2-Ethylphenoxy)-N-(2-methyl-4-(pyrrolidin-1-yl)phenyl)acetamide (CAS 848249-35-4)
- 2-(2-((2-Ethylphenoxy)methyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246677-40-5)
- 2-(3-((2-Ethylphenoxy)methyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246556-15-8)
Recommended Standards
- 3-(3,5-Dimethylphenoxy)-7-hydroxy-2-(trifluoromethyl)-4H-chromen-4-one (CAS 371115-78-5)
- 3-(4-Methoxyphenyl)-3-oxo-2-{2-[4-(trifluoromethyl)phenyl]hydrazono}propanal (CAS 338414-11-2)
- 3-(2-Oxo-3-(4-(trifluoromethyl)phenyl)imidazolidin-1-yl)benzoic acid (CAS 651748-86-6)
- 5-[(4-Methoxyphenoxy)methyl]-3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole (CAS 860784-37-8)
- N-[(Thiophen-2-yl)methyl]-4-(2,2,2-trifluoroethoxy)benzamide (CAS 866153-62-0)
- 3-Amino-9H-xanthen-9-one (CAS 27231-26-1)
- 3-Chloro-6-(chloromethyl)quinoline (CAS 1860892-43-8)
- 2-{4-chloropyrrolo[2,1-f][1,2,4]triazin-7-yl}-3-methylbutan-1-amine (CAS 2090952-43-3)
- 3-(1H-Indol-3-yl)-2-(1,3,8,10-tetraoxo-9-(tridecan-7-yl)-3,8,9,10-tetrahydroanthra[2,1,9-def:6,5,10-d'e'f']diisoquinolin-2(1H)-yl)propanoic acid (CAS 1375279-77-8)
- 4-Chloro-2-ethynylpyridine (CAS 1010115-57-7)
- 4,4′-Dibromooctafluorobiphenyl (CAS 10386-84-2)
- 1-fluoro-4-(2-methoxyethoxy)-2-nitrobenzene (CAS 1416626-24-8)
- 2-(2,5-Dimethoxyphenyl)butan-2-ol (CAS 89556-65-0)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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