2-Ethyl-5-phenylisoxazolium-3'-sulfonate

Product Name: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
CAS No.: 4156-16-5
Chemical Name: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
Synonyms: NEPIS;WOODWARDS REAGENT K;NEPISWOODWARD'S REAG;Woodward's Reagent K;Woodward's reagent K 95%;2-Ethyl-5-phenylisoxazolium-3-sulfonate;N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE;2-Ethyl-5-phenylisooxazoliuM-3-sulfonate;3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE;2-Ethyl-5-phenylisoxazolium-3'-sulfonate
CBNumber: CB2353032
Molecular Formula: C11H11NO4S
Formula Weight: 253.27
MOL File: 4156-16-5.mol

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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Property

Melting point:: 216-219 °C (dec.)
Density: 1.3854 (rough estimate)
refractive index: 1.4790 (estimate)
storage temp.: Store at RT.
solubility: insol MeCN, MeNO2, DMF, CH2Cl2; sol H2O.
Merck: 10050
BRN: 4149224
CAS DataBase Reference: 4156-16-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xn
Risk Statements: 22
WGK Germany: 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: E45260
Product name: Woodward’s reagent K
Purity: 95%
Packaging: 1g
Price: $354
Updated: 2023/06/20

AK Scientific

Product number: V1143
Product name: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
Packaging: 1g
Price: $207
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0009608
Product name: 3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE
Purity: 95.00%
Packaging: 10G
Price: $1431.05
Updated: 2021/12/16

Labseeker

Product number: SC-90975
Product name: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
Purity: 95
Packaging: 50g
Price: $5333
Updated: 2021/12/16

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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Chemical Properties,Usage,Production

Chemical Properties

white to off-white crystalline powder

Uses

Peptide-bond former.

Application

2-Ethyl-5-phenylisoxazolium-3'-sulfonate is a coupling agent for peptide synthesis; protein modification; and reduction of carboxylic acids to alcohols.

reaction suitability

reaction type: Coupling Reactions

storage

Stable to light and temperature and nonhygroscopic. No extra precautions need to be observed.

Purification Methods

Crystallise the reagent from diethyl ether or ethyl acetate/pet ether. [Lamas et al. J Am Chem Soc 108 5543 1986.] It is best purified by dissolving in excess of aqueous N HCl and precipitating with Me2CO to give a white fluffy solid. [Woodward et al. Tetrahedron 22 Suppl 8 321 1966, Fieser & Fieser Reagents for Organic Synthesis 1 385, 2 198.]

2-Ethyl-5-phenylisoxazolium-3'-sulfonate Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Suppliers

China 63 Germany 2 India 1 Switzerland 1 Ukraine 1 United Kingdom 5 United States 12 Global 85

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View Lastest Price from 2-Ethyl-5-phenylisoxazolium-3'-sulfonate manufacturers

Career Henan Chemical Co

Product: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate 4156-16-5
Price: US $1.00/g
Min. Order: 1g
Purity: 99.0%
Supply Ability: 100kg
Release date: 2020-01-09

4156-16-5, 2-Ethyl-5-phenylisoxazolium-3'-sulfonateRelated Search:

Ethanol Ethylparaben Ethyl cyanoacetate Ethyl pyruvate Ethyl formate Sulfisoxazole ISOXADIFEN-ETHYL Sulfamethoxazole Isoxazole Ethyl acrylate Ethyl acetate Sulfonates Lignin Sulfonate 5-Methylisoxazole 5-PHENYLISOXAZOLE 2-Ethyl-5-phenylisoxazolium-3'-sulfonate 2-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE = N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE

NEPIS

N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE

WOODWARDS REAGENT K

2-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULPHONEATE

Isoxazolium, 2-ethyl-5-(3-sulfophenyl)-, inner salt

NEPIS 2-ETHYL-5-PHENYLISOXAZOLIUM-3''-SULFONATE

3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE 99+%

3-(2-Ethyl-5-isoxazolio)benzenesulphonate~NEPIS~Woodwards

2-Ethyl-5-phenylisoxazolium-3μ-sulfonate, NEPIS

5-(3-Sulfonatophenyl)-2-ethylisoxazol-2-ium

N-Ethyl-5-phenylisoxazolium-3'-sulfonate,95%

2-Ethyl-5-phenylisooxazoliuM-3-sulfonate

NEPISWOODWARD'S REAG

Woodward's reagent K 95%

3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE

2-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULPHONATE

3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate

Woodward's Reagent K

2-Ethyl-5-phenylisoxazolium-3'-sulfonate

2-Ethyl-5-phenylisoxazolium-3-sulfonate

4156-16-5

C11H12NO4S

Coupling

Others

Synthetic Reagents

Peptide Synthesis

Coupling Reactions (Peptide Synthesis)

Condensation & Active Esterification

Biochemistry

Condensation & Active Esterification

Coupling Reactions (Peptide Synthesis)

Peptide Synthesis

Synthetic Organic Chemistry