3-(2-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one CAS 137374-74-4
| CAS No. | 137374-74-4 |
| Molecular Formula | C15H9FO4 |
| Molecular Weight | 272.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(2-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one.
CATO supplies 3-(2-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one (CAS 137374-74-4), a certified reference material (molecular formula C15H9FO4, MW 272.23 g/mol) for analytical method development and quality control.
3-(2-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one (C15H9FO4) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-(2-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-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 | C15H9FO4 |
| Molecular Weight | 272.23 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.) | 1996 |
| Halogen Content | F-containing |
Related Fluorophenoxy Standards
- 3-(4-Fluorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one (CAS 124330-34-3)
- 5-(2-(2-Fluorophenoxy)phenyl)-1,3,4-oxadiazol-2(3H)-one (CAS 821007-37-8)
- 1-(4-(4-Fluorophenoxy)phenyl)butane-1,3-dione (CAS 942474-08-0)
- 5-((2-(2-Fluorophenoxy)ethyl)thio)-1,3,4-thiadiazol-2-amine (CAS 1094562-99-8)
- 1-(2-(4-Fluorophenoxy)ethyl)-1H-benzo[d]imidazol-2-amine (CAS 364339-37-7)
- 5-(2-(2-Fluorophenoxy)phenyl)-1,3,4-oxadiazol-2-amine (CAS 767310-79-2)
- 8-(3-Fluorophenoxy)imidazo[1,2-a]pyrazine-6-carboximidamide (CAS 2052362-58-8)
- 2-(2-Fluorophenoxy)-5-(trifluoromethyl)aniline (CAS 183111-15-1)
Recommended Standards
- P-[2-Oxo-1-(phenylmethoxy)propyl]phosphonic Acid Dimethyl Ester (CAS 1258067-56-9)
- 2-(4-Fluorophenyl)-7-methyl-5-nitrobenzo[d]oxazole (CAS 1421240-95-0)
- N-(6-(1H-1,2,4-Triazol-1-yl)pyrimidin-4-yl)-2-(1H-tetrazol-1-yl)acetamide (CAS 1428359-30-1)
- [7-(4-fluorophenyl)[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]acetic acid (CAS 1160245-79-3)
- 6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazine-2-carbaldehyde (CAS 623565-59-3)
- Quinoline-2-sulfonyl chloride (CAS 193634-32-1)
- 2,8-Dichloroquinoline-3-carboxylic acid (CAS 1017172-90-5)
- 4-(4-Bromobenzoyl)quinoline (CAS 1706450-26-1)
- 4-chloro-3-nitro-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1196507-60-4)
- 6-Iodo-4-methylquinoline (CAS 57830-59-8)
- A,A-Diphenyl-benzeneacetaldehyde (CAS 42365-04-8)
- 4-Cyano-N-(2-(furan-2-yl)ethyl)benzamide (CAS 1110912-23-6)
- 4-Iodo-oxazole-5-carboxylic acid ethyl ester (CAS 220580-92-7)
- Heme iron polypeptide(Hematin) (CAS 14875-96-8)
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