2,3,5,6-Tetrafluoroterephthalaldehyde CAS 3217-47-8
| CAS No. | 3217-47-8 |
| Molecular Formula | C8H2F4O2 |
| Molecular Weight | 206.09 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.
2,3,5,6-Tetrafluoroterephthalaldehyde (CAS 3217-47-8), molecular formula C8H2F4O2 and molecular weight 206.09 g/mol, is a CATO reference standard with documented purity and traceability.
2,3,5,6-Tetrafluoroterephthalaldehyde (C8H2F4O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 2,3,5,6-Tetrafluoroterephthalaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H2F4O2 |
| Molecular Weight | 206.09 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Recommended Standards
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- Pcb No. 91 (CAS 68194-05-8)
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- Tritriacontanoic acid (CAS 38232-03-0)
- D-Penicillamine-d3 (CAS CATO-C4X-29234)
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- 2,2'-(Propane-1,1-diyl)difuran (CAS 85672-35-1)
- (3-(N-isopropylsulfamoyl)-4-methoxyphenyl)boronic acid (CAS 874459-65-1)
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- Semaglutide impurity 29 (CAS 110990-08-4)
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