N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE
- CAS No.
- 4611-62-5
- Chemical Name:
- N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE
- Synonyms
- 2-ethyl-2H-1λ,2-benzoxazol-1-ylium;N-ETHYLBENZISOXAZOLIUM FLUOROBORATE;N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE;2-ETHYL-1 2-BENZISOXAZOLIUM TETRAFLUORO&;2-ethyl-1,2-benzisoxazole tetrafluoroborate;2-ETHYL-1,2-BENZISOXAZOLIUM TETRAFLUOROBORATE;N-Ethylbenzisoxazolium tetrafluoroborate, 98+%
- CBNumber:
- CB4413871
- Molecular Formula:
- C9H10BF4NO
- Molecular Weight:
- 234.99
- MDL Number:
- MFCD00031785
- MOL File:
- 4611-62-5.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| N-ETHYLBENZISOXAZOLIUM FLUOROBORATE AldrichCPR | S617024 | 1 unit | $32.7 |
| N-ETHYLBENZISOXAZOLIUM FLUOROBORATE Aldrich | S617024 | 250mg | $29.8 |
| 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate, 98.0 +% 98.0+% | 230305 | 1g | $200 |
| 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate, 98.0 +% 98.0+% | 230305 | 5g | $333 |
| 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate 98.0+% | 12994 | 1G | $60.39 |
| Melting point | 108-110 °C(lit.) |
|---|---|
| storage temp. | Store at 0-5°C |
| solubility | sol acetonitrile; slightly sol dichloromethane; sol aqueous acid (unstable above pH 4). |
| form | crystalline solid |
| Sensitive | Hygroscopic |
| CAS DataBase Reference | 4611-62-5(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 3-8-10-21 | |||||||||
| NFPA 704 |
|
N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE price More Price(12)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S617024 | N-ETHYLBENZISOXAZOLIUM FLUOROBORATE AldrichCPR | 4611-62-5 | 1 unit | $32.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | S617024 | N-ETHYLBENZISOXAZOLIUM FLUOROBORATE Aldrich | 4611-62-5 | 250mg | $29.8 | 2024-03-01 | Buy |
| Usbiological | 230305 | 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate, 98.0 +% 98.0+% | 4611-62-5 | 1g | $200 | 2026-06-03 | Buy |
| Usbiological | 230305 | 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate, 98.0 +% 98.0+% | 4611-62-5 | 5g | $333 | 2026-06-03 | Buy |
| Chem-Impex | 12994 | 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate 98.0+% | 4611-62-5 | 1G | $60.39 | 2026-05-19 | Buy |
N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Chemical Properties,Uses,Production
Description
N-Ethylbenzisoxazolium Tetrafluoroborate is a peptide-coupling reagent; reacts with a wide range of nucleophiles to give o-hydroxy-N-ethylbenzamido derivatives.
Synthesis
N-Ethylbenzisoxazolium Tetrafluoroborate is prepared by ethylation of benzisoxazole with purified Triethyloxonium Tetrafluoroborate.
storage
The salt is reported not to be hygroscopic, although it etches glass on long exposure to moist air; should be protected from light; reported to be an irritant.
Purification Methods
Recrystallise it from MeCN/EtOAc to give magnificent crystals. It is not hygroscopic but on long exposure to moisture it etches glass. It is light-sensitive and should be stored in brown glass bottles. UV (H2O), max 258nm ( 13 100) and 297nm ( 2 900), IR (CH2Cl2): max 1613 (C=N) and 1111-1000 (BF 4 ) [UV, IR, NMR: Kemp & Woodward Tetrahedron 21 3019 1965].
N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Preparation Products And Raw materials
Raw materials
Preparation Products
N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Career Henan Chemica Co | +86-0371-86658258 +86-13203830695 | laboratory@coreychem.com | China | 30203 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43392 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53799 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32288 | 55 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shaanxi Linbang Industrial Co., Ltd | 17709134430 | 2379795542@qq.com | China | 4722 | 58 |
