3-(4-Ethylphenoxy)-7-hydroxy-4H-chromen-4-one CAS 201284-79-9
| CAS No. | 201284-79-9 |
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(4-Ethylphenoxy)-7-hydroxy-4H-chromen-4-one (CAS 201284-79-9), a certified reference material (molecular formula C17H14O4, MW 282.29 g/mol) for analytical method development and quality control.
The molecular framework of 3-(4-Ethylphenoxy)-7-hydroxy-4H-chromen-4-one (C17H14O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H14O4 |
| Molecular Weight | 282.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
Related Ethylphenoxy Standards
- 3-(2-Ethylphenoxy)-7-hydroxy-4H-chromen-4-one (CAS 685556-08-5)
- 2-(2-Ethylphenoxy)-5-(trifluoromethyl)aniline (CAS 946682-70-8)
- 2-(4-Ethylphenoxy)-5-(trifluoromethyl)aniline (CAS 946715-54-4)
- 4-(2-Ethylphenoxy)-2-(trifluoromethyl)aniline (CAS 946698-09-5)
- 4-(2-Ethylphenoxy)-3-(trifluoromethyl)aniline (CAS 946740-66-5)
- 4-(4-Ethylphenoxy)-2-(trifluoromethyl)aniline (CAS 946741-51-1)
- 4-(4-Ethylphenoxy)-3-(trifluoromethyl)aniline (CAS 946662-95-9)
- 2-(2-Ethylphenoxy)-N-(2-ethylphenyl)acetamide (CAS 449751-83-1)
Recommended Standards
- 3-(3,4-Dimethoxyphenyl)coumarin (CAS 22367-92-6)
- 3-(4-Methoxyphenoxy)-1-methyl-1,2-dihydroquinoxalin-2-one (CAS 338774-64-4)
- 3-(3,4-Dimethoxybenzyl)-4-methoxy-4-oxobutanoic acid (CAS 78647-52-6)
- 3-(Boc-amino)-2-methoxyisonicotinic Acid (CAS 870997-82-3)
- N-(4-Bromobenzyl)-2-methoxybenzamide (CAS 1282805-05-3)
- Pateamine A (CAS 139220-18-1)
- (S)-2-Amino-N-cyclopropyl-N-((1-methylpyrrolidin-2-yl)methyl)acetamide (CAS 1354008-64-2)
- 1-Ethoxy-2,3,5,6-tetrafluoro-4-vinylbenzene (CAS 1350637-16-9)
- Palladium sulfide (CAS 12648-43-0)
- 2-Aminoacetophenone hydrochloride (CAS 5468-37-1)
- 6-(methylsulfanyl)-1H-indole (CAS 202584-22-3)
- 2-Amino-N-(4-bromo-2-fluorophenyl)acetamide hydrochloride (CAS 1147207-13-3)
- n-((1,2,3-Thiadiazol-4-yl)methyl)-3-ethoxypropan-1-amine (CAS 1157056-71-7)
- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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