4-Fluorobenzenediazonium Tetrafluoroborate CAS 459-45-0
| CAS No. | 459-45-0 |
| Molecular Formula | C6H4FN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Fluorobenzenediazonium Tetrafluoroborate (C6H4FN2BF4) contains a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Fluorobenzenediazonium Tetrafluoroborate (CAS 459-45-0), molecular formula C6H4FN2BF4 and molecular weight 209.91 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 4-Fluorobenzenediazonium Tetrafluoroborate 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 | C6H4FN2 BF4 |
| Molecular Weight | 209.91 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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- Asymmetric Dimethylarginine (CAS 30315-93-6)
- 2-[(3-Bromobenzyl)oxy]-5-chlorobenzoic acid (CAS 1096910-95-0)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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