4-Cyano-3-fluorophenylboronic acid
- CAS No.
- 843663-18-3
- Chemical Name:
- 4-Cyano-3-fluorophenylboronic acid
- Synonyms
- 4-CYANO-3-FLUOROBENZENEBORONIC ACID;4-Cyano-3-fL;CAS:843663-18-3;4-CYANO-3-FLUOROPHEN;4-CYANO-3-FLUOROPHENYLBORONIC;4-Borono-2-fluorobenzonitrile;3-Fluoro-4-cyanophenylboronic acid;4-Cyano-3-fluorophenylboronic acid;Boronic acid, B-(4-cyano-3-fluorophenyl)-;oronicacid, (4-cyano-3-fluorophenyl)- (9CI)
- CBNumber:
- CB0389796
- Molecular Formula:
- C7H5BFNO2
- Molecular Weight:
- 164.93
- MDL Number:
- MFCD03411549
- MOL File:
- 843663-18-3.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 362-366 |
|---|---|
| Boiling point | 354.4±52.0 °C(Predicted) |
| Density | 1.35±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 6.30±0.10(Predicted) |
| color | White to Almost white |
| InChI | InChI=1S/C7H5BFNO2/c9-7-3-6(8(11)12)2-1-5(7)4-10/h1-3,11-12H |
| InChIKey | DECWLXUOZUMPBF-UHFFFAOYSA-N |
| SMILES | B(C1=CC=C(C#N)C(F)=C1)(O)O |
| CAS DataBase Reference | 843663-18-3(CAS DataBase Reference) |
| UNSPSC Code | 12352106 |
| NACRES | NA.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS06 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H312+H332-H315-H319-H301-H335 | |||||||||
| Precautionary statements | P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501-P280a-P301+P310a-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 20/21/22-36/37/38-22 | |||||||||
| Safety Statements | 26-36/37/39-24/25 | |||||||||
| RIDADR | 3439 | |||||||||
| WGK Germany | WGK 3 | |||||||||
| Hazard Note | Harmhul/Keep Cold | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| NFPA 704 |
|
4-Cyano-3-fluorophenylboronic acid price More Price(70)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | CDS020115 | 4-Cyano-3-fluorophenylboronic acid AldrichCPR | 843663-18-3 | 100MG | $77.9 | 2026-04-30 | Buy |
| TCI Chemical | C2456 | 4-Cyano-3-fluorophenylboronic Acid (contains varying amounts of Anhydride) | 843663-18-3 | 1g | $42 | 2026-04-30 | Buy |
| TCI Chemical | C2456 | 4-Cyano-3-fluorophenylboronic Acid (contains varying amounts of Anhydride) | 843663-18-3 | 5g | $139 | 2026-04-30 | Buy |
| Apolloscientific | PC10333 | 4-Cyano-3-fluorobenzeneboronic acid 97% | 843663-18-3 | 1g | $21 | 2026-06-04 | Buy |
| Activate Scientific | AS34949 | 4-Cyano-3-fluorophenylboronic acid 95% | 843663-18-3 | 1g | $20 | 2026-06-04 | Buy |
4-Cyano-3-fluorophenylboronic acid Chemical Properties, Uses, Production
Chemical Properties
White to light yellow solid
Uses
4-Cyano-3-fluorophenylboronic acid serves as a building block for helical polymer nanotubes through dative B−N self-assembly with chiral piperazine or 2-methylpiperazine[2].
Synthesis
5419-55-6
105942-08-3
843663-18-3
The general procedure for the synthesis of 4-cyano-3-fluorophenylboronic acid from triisopropyl borate and 4-bromo-2-fluorobenzonitrile was as follows: 4-bromo-2-fluorobenzonitrile (200 g, 990 mmol, 1.00 eq.) and triisopropyl borate (228 g, 1188 mmol, 1.2 eq.) were dissolved in a mixture of 700 mL tetrahydrofuran (THF) and 1400 mL toluene solvent. The reaction mixture was cooled to an internal temperature of -75 °C using a dry ice/acetone bath. n-Butyl lithium (n-BuLi, 396 mL of a 2.5 M hexane solution) was added slowly over a period of 2 hours. After the addition was completed, the reaction mixture appeared as a light red slurry. The reaction solution was continued to be stirred at -74 °C for 15 min, followed by a slow warming to -20 °C and the reaction was burst with 1500 mL of 2.5 M hydrochloric acid (HCl) solution. The reaction mixture was allowed to gradually warm up to room temperature (RT). The organic and aqueous layers were separated and the aqueous layer was extracted with ethyl acetate (EtOAc). The organic phases were combined, dried over anhydrous sodium sulfate (Na2SO4), filtered and concentrated under reduced pressure to give a light brown solid. The solid was ground with hexane and transferred to a sintered glass funnel. It was washed again with hexane to give a light yellow filtrate. The light brown solid was mixed with cold dichloromethane (CH2Cl2) and stirred and filtered. The solid was washed with a small amount of dichloromethane to give an off-white solid and a brown filtrate. The solid was dried in a vacuum oven at 40°C to give a final 112 g (679 mmol, 69% yield) of 3-fluoro-4-cyanophenylboronic acid as an off-white solid.
References
[1] Patent: WO2007/87488, 2007, A2. Location in patent: Page/Page column 17; 47-48
[2] Yu, Y., Shen, S.-H., Chen, J.-B., Ding, Q.-R., Zhang, H.-X., & Zhang, J. (2025). Homochiral Single Crystals of Helical Polymer Nanotubes: Synthesis and Application. Journal of the American Chemical Society, 147(24), 20770–20777. https://doi.org/10.1021/jacs.5c04285
4-Cyano-3-fluorophenylboronic acid Preparation Products And Raw materials
Raw materials
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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 |
| ShangHai DEMO Chemical Co.,Ltd | 400-021-7337 2355568890 | sales@demochem.com | China | 2569 | 57 |
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shijiazhuang Sdyano Fine Chemical Co., Ltd. | 0311-89250318 13582355795 | master@sjzsdyn.com | China | 2776 | 65 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 |
View Latest Price from 4-Cyano-3-fluorophenylboronic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-25 | (4-Cyano-3-fluorophenyl)boronic acid
843663-18-3
|
$3.00-9.00 | 99% | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |||
 |
2025-04-04 | 4-Cyano-3-fluorophenylboronic acid
843663-18-3
|
1KG | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. | ||
 |
2021-08-12 | 4-CYANO-3-FLUOROPHENYLBORONIC ACID
843663-18-3
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
- (4-Cyano-3-fluorophenyl)boronic acid
843663-18-3
- $3.00-9.00
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- 4-Cyano-3-fluorophenylboronic acid
843663-18-3
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- 4-CYANO-3-FLUOROPHENYLBORONIC ACID
843663-18-3
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
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