3-(5-((3-Methyl-5-oxoisoxazol-4(5H)-ylidene)methyl)furan-2-yl)benzoic acid CAS 884497-55-6
| CAS No. | 884497-55-6 |
| Molecular Formula | C16H11NO5 |
| Molecular Weight | 297.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(5-((3-Methyl-5-oxoisoxazol-4(5H)-ylidene)methyl)furan-2-yl)benzoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(5-((3-Methyl-5-oxoisoxazol-4(5H)-ylidene)methyl)furan-2-yl)benzoic acid (CAS 884497-55-6) is a high-purity analytical reference standard with the molecular formula C16H11NO5 and a molecular weight of 297.26 g/mol.
The molecular framework of 3-(5-((3-Methyl-5-oxoisoxazol-4(5H)-ylidene)methyl)furan-2-yl)benzoic acid (C16H11NO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C16H11NO5 |
| Molecular Weight | 297.26 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.) | 1987 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- 2-Amino-1-(2,3-dihydro-benzofuran-5-yl)-ethanolHydrochloride (CAS 1332886-38-0)
- Cycloaspeptide D (CAS 691363-62-9)
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