4,7-Dimethoxy-5-(5-phenyl-4,5-dihydroisoxazol-3-yl)benzofuran-6-ol CAS 61340-52-1
| CAS No. | 61340-52-1 |
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 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.
4,7-Dimethoxy-5-(5-phenyl-4,5-dihydroisoxazol-3-yl)benzofuran-6-ol (CAS 61340-52-1), molecular formula C19H17NO5 and molecular weight 339.34 g/mol, is a CATO reference standard with documented purity and traceability.
4,7-Dimethoxy-5-(5-phenyl-4,5-dihydroisoxazol-3-yl)benzofuran-6-ol (C19H17NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H17NO5 |
| Molecular Weight | 339.34 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Related Dimethoxy Standards
- 4,7-Dimethoxy-5-(3-phenyl-4,5-dihydroisoxazol-5-yl)benzofuran-6-ol (CAS 61340-56-5)
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Recommended Standards
- 4-Ethyl-5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 957014-53-8)
- 4-(4-Methoxyphenyl)-2-[3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl]-1,3-thiazole (CAS 955976-85-9)
- 5-(3,4,5-Trimethoxyphenyl)-[1,3]dioxolo[4,5-g]isoquinoline (CAS 6289-71-0)
- 3-(3-(4-(2-Methoxyethoxy)phenyl)isoxazol-5-yl)benzoic acid (CAS 745055-49-6)
- 2,5-Difluoro-3-nitropyridine (CAS 179558-82-8)
- 4-Cyano-3-(difluoromethyl)-2-fluoro-5-hydroxypyridine (CAS 1806871-11-3)
- Sodium bis(sulfonatothio)argentate(I) (CAS 16027-55-7)
- 2-Bromo-3-methyl-n-(2-methylbutan-2-yl)butanamide (CAS 1016773-95-7)
- 2-(Azetidin-3-yloxy)pyrazine hydrochloride (CAS 1430841-44-3)
- 4-(4-Fluorophenyl)-N-(o-tolyl)piperazine-1-carboxamide (CAS 896573-66-3)
- tert-Butyl (2-amino-2-(2-chlorophenyl)ethyl)carbamate (CAS 939760-39-1)
- (4S,5R)-4,5-Dihydroxy-3-((E)-prop-1-en-1-yl)cyclopent-2-enone (CAS 582-46-7)
- (1-methyl-1H-pyrazol-3-yl)methanamine (CAS 612511-81-6)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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