N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE

Product Name: 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
Formula Weight: 234.99
MOL File: 4611-62-5.mol

More

Less

N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Property

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)

More

Less

Safety

Risk Statements: 36/37/38
Safety Statements: 22-24/25
WGK Germany: 3
F: 3-8-10-21

More

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S617024
Product name: N-ETHYLBENZISOXAZOLIUM FLUOROBORATE
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $30.7
Updated: 2025/07/31

Sigma-Aldrich

Product number: S617024
Product name: N-ETHYLBENZISOXAZOLIUM FLUOROBORATE
Purity: Aldrich
Packaging: 250mg
Price: $29.8
Updated: 2024/03/01

AK Scientific

Product number: 7553AH
Product name: N-Ethylbenzisoxazoliumtetrafluoroborate
Packaging: 1g
Price: $105
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: BOR0004089
Product name: N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE
Purity: 95.00%
Packaging: 1G
Price: $136.29
Updated: 2021/12/16

AHH

Product number: MT-12045
Product name: N-Ethylbenzisoxazoliumtetrafluoroborate
Purity: 98%
Packaging: 25g
Price: $345
Updated: 2021/12/16

More

Less

N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Chemical Properties,Usage,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

More

Less

N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE Suppliers

China 16 Germany 2 India 2 South Korea 1 Switzerland 1 United Kingdom 5 United States 7 Global 34

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44801
Advantage: 61

Guangzhou Jhd Chemical Reagent Co., Ltd.

Tel: 020-84383047
Fax: 020-84380294
Email: sales@jhd.com.cn
Country: China
ProdList: 9186
Advantage: 65

Career Henan Chemica Co

Tel: +86-0371-86658258 +8613203830695
Fax: 0371-86658258
Email: laboratory@coreychem.com
Country: China
ProdList: 30229
Advantage: 58

Shaanxi Linbang Industrial Co., Ltd

Tel: 17709134430
Email: 2379795542@qq.com
Country: China
ProdList: 4822
Advantage: 58

Merck KGaA

Tel: 21-20338288
Email: ordercn@merckgroup.com
Country: China
ProdList: 6394
Advantage: 58

Santa Cruz Biotechnology Inc

Tel: 021-60936350
Email: scbt@scbt.com
Country: China
ProdList: 6594
Advantage: 58

DAYANG CHEM (HANGZHOU) CO.,LTD

Tel: +86-88938639 +86-17705817739
Email: info@dycnchem.com
Country: China
ProdList: 53899
Advantage: 58

XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.

Tel: +8618950047208
Email: ellena@amitychem.com
Country: China
ProdList: 43416
Advantage: 58

4611-62-5, N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATERelated Search:

Fluoroboric acid Boron trifluoride dihydrate N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE 1,2-BENZISOXAZOLE Ammonium fluoborate Isoxazole Ethylamine-borontrifluoride

2-ETHYL-1,2-BENZISOXAZOLIUM TETRAFLUOROBORATE

N-ETHYLBENZISOXAZOLIUM TETRAFLUOROBORATE

2-ethyl-1,2-benzisoxazole tetrafluoroborate

2-ETHYL-1 2-BENZISOXAZOLIUM TETRAFLUORO&

N-Ethylbenzisoxazolium tetrafluoroborate, 98+%

N-ETHYLBENZISOXAZOLIUM FLUOROBORATE

2-ethyl-2H-1λ,2-benzoxazol-1-ylium

4611-62-5

C9H10BF4NO

C9H14BNO

C9H10NOBF4