3-(4-Fluorophenoxy)-7-hydroxy-2-methyl-4h-chromen-4-one CAS 302918-20-3
| CAS No. | 302918-20-3 |
| Molecular Formula | C16H11FO4 |
| Molecular Weight | 286.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(4-Fluorophenoxy)-7-hydroxy-2-methyl-4h-chromen-4-one (C16H11FO4) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 286.25 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 3-(4-Fluorophenoxy)-7-hydroxy-2-methyl-4h-chromen-4-one (CAS 302918-20-3), a certified reference material (molecular formula C16H11FO4, MW 286.25 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(4-Fluorophenoxy)-7-hydroxy-2-methyl-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 | C16H11FO4 |
| Molecular Weight | 286.25 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, keep tightly closed to prevent evaporation |
| 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 Fluorophenoxy Standards
- 3-(2-Fluorophenoxy)-7-hydroxy-2-methyl-4h-chromen-4-one (CAS 315234-43-6)
- 2-(4-Fluorophenoxy)-4-methoxy-3-(1H-1,2,4-triazol-5-yl)pyridine (CAS 341966-67-4)
- 4-(4-Fluorophenoxy)-2-(methylsulfanyl)quinazoline (CAS 477845-78-6)
- 4-(4-Fluorophenoxy)benzenesulfonyl chloride (CAS 192329-91-2)
- 2-(4-Fluorophenoxy)benzenesulfonylchloride (CAS 887344-39-0)
- 3-(4-Fluorophenoxy)benzenesulfonyl chloride (CAS 885950-85-6)
- 4-(3-Fluorophenoxy)benzene-1-sulfonyl chloride (CAS 815576-23-9)
- (E)-1-(4-(4-Fluorophenoxy)phenyl)-3-(dimethylamino)prop-2-en-1-one (CAS 299207-00-4)
Recommended Standards
- 3-Phenyl-6-(trifluoromethyl)-1H-indole-2-carbonitrile (CAS 62039-72-9)
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