(5-Methoxy-3-methylbenzofuran-2-yl)(phenyl)methanone CAS 303145-44-0
| CAS No. | 303145-44-0 |
| Molecular Formula | C17H14O3 |
| Molecular Weight | 266.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-Methoxy-3-methylbenzofuran-2-yl)(phenyl)methanone (CAS 303145-44-0), molecular formula C17H14O3 and molecular weight 266.29 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, (5-Methoxy-3-methylbenzofuran-2-yl)(phenyl)methanone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C17H14O3 |
| Molecular Weight | 266.29 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.) | 2025 |
Related Methoxy Standards
- 5-Methoxy-1-(pyridin-3-ylmethyl)-1H-indole-3-carbaldehyde (CAS 1030421-44-3)
- 4-(3-Methoxy-4-nitrophenyl)-2,6-dimethylmorpholine (CAS 1135283-59-8)
- 6-Methoxy-4-methyl-3-phenylcoumarin (CAS 115059-27-3)
- Butyl 4-(2-methoxy-2-oxoethoxy)benzoate (CAS 1206109-89-8)
- 3-Methoxy-4-(oxan-4-ylmethoxy)benzoic acid (CAS 1281669-02-0)
- (1-(3-Methoxy-4-nitrophenyl)piperidin-3-yl)methanol (CAS 1410204-92-0)
- Ethyl 4-methoxy-3-methylphenethyl oxalate (CAS 1443335-37-2)
- Ethyl 2-(4-methoxy-3-propoxyphenyl)-2-oxoacetate (CAS 1443350-30-8)
Recommended Standards
- (3Z)-3-(Ethoxyimino)-1-phenyl-2,3-dihydro-1H-indol-2-one (CAS 478261-42-6)
- (6-Methoxy-3-methylbenzofuran-2-yl)(phenyl)methanone (CAS 269075-46-9)
- (3S)-3-(4-hydroxy-1-oxo-isoindolin-2-yl)piperidine-2,6-dione (CAS 2702457-63-2)
- (6-Methyl-2-phenyl-imidazo[1,2-a]pyridin-3-yl)-acetic acid (CAS 365213-66-7)
- 4-(4-Chlorophenyl)-2-fluorophenol (CAS 1261944-84-6)
- 3-Chlorobutanoyl Chloride (CAS 1951-11-7)
- Methyl 4-((2-(3-(thiophen-2-yl)-1H-pyrazol-1-yl)ethyl)carbamoyl)benzoate (CAS 1448122-03-9)
- Dicyclohexylamine (R)-2-((tert-butoxycarbonyl)amino)-3-cyclopropylpropanoate (CAS 89483-09-0)
- 2-(4-Methyl-3-nitrophenyl)imidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 1216087-78-3)
- (2E,3E)-2-[2-(3,5-Dichlorophenyl)hydrazin-1-ylidene]-3-hydrazinylidene-1-(4-methylphenyl)propan-1-one (CAS 338400-42-3)
- 4-Amino-5-benzoyl-2-((3-fluorobenzyl)thio)thiophene-3-carbonitrile (CAS 478081-56-0)
- (E)-1,2-Di(pyridin-2-yl)ethene (CAS 13341-40-7)
- 2-(((1-Methylpyrrolidin-3-yl)amino)methyl)phenol (CAS 1250584-63-4)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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