4-Bromobenzenediazonium tetrafluoroborate
- CAS No.
- 673-40-5
- Chemical Name:
- 4-Bromobenzenediazonium tetrafluoroborate
- Synonyms
- 4-bromobenzenediazonium;P-BROMOBENZENEDIAZONIUM TETRAFLUOROBORATE;4-Bromobenzenediazonium tetrafluoroborate;4-bromoazabenzenetrafluoroboronic acidsalt;4-Bromobenzenediazonium Tetrafluoroborate >4-Bromobenzenediazonium tetrafluoroborate 96%;4-Bromobenzenediazonium tetrafluoroborate,96%;4-Bromobenzenediazonium tetrafluoroborate, 97+%;4-bromoboronic acid diazobenzene tetrafluoroborate;BORON(3+) ION 4-BROMOBENZENEDIAZONIUM TETRAFLUORIDE
- CBNumber:
- CB0455642
- Molecular Formula:
- C6H4BBrF4N2
- Molecular Weight:
- 270.82
- MDL Number:
- MFCD00011894
- MOL File:
- 673-40-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 135-140 °C (dec.)(lit.) |
|---|---|
| storage temp. | 2-8°C |
| form | powder to crystal |
| color | White to Yellow to Orange |
| Sensitive | Moisture Sensitive |
| BRN | 3791621 |
| InChI | 1S/C6H4BrN2.BF4/c7-5-1-3-6(9-8)4-2-5;2-1(3,4)5/h1-4H;/q+1;-1 |
| InChIKey | FXTCQUCYDJZGGU-UHFFFAOYSA-N |
| SMILES | F[B-](F)(F)F.Brc1ccc(cc1)[N+]#N |
| CAS DataBase Reference | 673-40-5 |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3261 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | BQ9625000 | |||||||||
| F | 9-21 | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29270000 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Eye Dam. 1 Skin Corr. 1B |
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| NFPA 704 |
|
4-Bromobenzenediazonium tetrafluoroborate price More Price(29)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 280895 | 4-Bromobenzenediazonium tetrafluoroborate 96% | 673-40-5 | 5g | $73.4 | 2023-06-20 | Buy |
| TCI Chemical | B3114 | 4-Bromobenzenediazonium Tetrafluoroborate >97.0%(HPLC)(T) | 673-40-5 | 5g | $110 | 2026-04-30 | Buy |
| Biosynth | FB86088 | 4-Bromobenzenediazonium Tetrafluoroborate | 673-40-5 | 5g | $900 | 2026-06-04 | Buy |
| Biosynth | FB86088 | 4-Bromobenzenediazonium Tetrafluoroborate | 673-40-5 | 50g | $900 | 2026-06-04 | Buy |
| Biosynth | FB86088 | 4-Bromobenzenediazonium Tetrafluoroborate | 673-40-5 | 2g | $900 | 2026-06-04 | Buy |
4-Bromobenzenediazonium tetrafluoroborate Chemical Properties, Uses, Production
Synthesis
Under an argon atmosphere, 0.80 g (0.0045 mol, 1 equivalent) of 4-bromoaniline and 8 mL of methanol were added to a dry reaction flask to obtain a homogeneous solution with a concentration of approximately 0.5 M. The resulting reaction solution was cooled to approximately -20°C in a liquid nitrogen/acetonitrile cold bath. Boron trifluoride diethyl ether (1.38 mL, 1.59 g, 0.0112 mol) was slowly added dropwise to the above reaction mixture, followed by the addition of butyl nitrite (0.80 mL, 0.69 g, 0.0067 mol) over 10–15 minutes. The resulting reaction mixture was allowed to slowly rise to room temperature, during which a significant solid precipitation was observed (because the diazonium tetrafluoroborate product is not readily soluble in methanol after 2 hours). The resulting reaction mixture was filtered under vacuum to separate the precipitated solid. The filter cake was then washed with cold diethyl ether solution, separated, and dried under vacuum to obtain 4-Bromobenzenediazonium tetrafluoroborate.
Chemical Properties
light beige to pink-beige powder
Uses
4-Bromobenzenediazonium tetrafluoroborate was used in preparation of surface modified Au(111) electrode, 1-(4-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene.
General Description
Electrochemical reduction of 4-bromobenzenediazonium tetrafluoroborate was investigated for the derivatization of the carbon felt (modified carbon surfaces whether glassy carbon or carbon felt).
Purification Methods
Wash the salt with Et2O until the wash is colourless and allow it to dry by blowing N2 over it. Store it at 0-4o in the dark. [Schiemann & Pillarsky Chem Ber 64 1340 1931, Beilstein 16 III 517.]
4-Bromobenzenediazonium tetrafluoroborate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Thermo Fisher Scientific | 800-810-5118 | cnchemical@thermofisher.com | China | 17752 | 75 |
| Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 13913916777 | cfzhang@aikonchem.com | China | 19902 | 55 |
