2,3,4,6-Tetrafluorobenzoic acid CAS 32890-92-9
| CAS No. | 32890-92-9 |
| Molecular Formula | C7H2F4O2 |
| Molecular Weight | 194.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 194.08 g/mol gives 2,3,4,6-Tetrafluorobenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2,3,4,6-Tetrafluorobenzoic acid (CAS 32890-92-9), a certified reference material (molecular formula C7H2F4O2, MW 194.08 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, 2,3,4,6-Tetrafluorobenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C7H2F4O2 |
| Molecular Weight | 194.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | F-containing |
Related Tetrafluorobenzoic Standards
Recommended Standards
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- 1,2,4-Triazolo[4,3-a]pyridin-3-amine 2H-[1,2,4]triazolo[4,3-a]pyridin-3-imine 767-62-4 NSC76010 [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-imine s-Triazolo[4,3-a]pyridine, 3-amino- (CAS 767-62-4)
- 3-Chloro-2-fluoropyridin-4-ol (CAS 1227499-28-6)
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