4,5,6,7-tetrafluoro-2-methyl-1-benzofuran-3-carboxylic acid CAS 3265-72-3
| CAS No. | 3265-72-3 |
| Molecular Formula | C10H4F4O3 |
| Molecular Weight | 248.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4,5,6,7-tetrafluoro-2-methyl-1-benzofuran-3-carboxylic acid (C10H4F4O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 248.13 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4,5,6,7-tetrafluoro-2-methyl-1-benzofuran-3-carboxylic acid (CAS 3265-72-3), a certified reference material (molecular formula C10H4F4O3, MW 248.13 g/mol) for analytical method development and quality control.
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 | C10H4F4O3 |
| Molecular Weight | 248.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related tetrafluoro Standards
- [2,3,5,6-Tetrafluoro-4-(trifluoromethyl)phenyl]hydrazine (CAS 1868-85-5)
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- 32996-33-1 4,5,6,7-Tetrafluoro-1H-indol-3-yl acetic acid MFCD00203228 (CAS 32996-33-1)
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