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

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Products Intro: Product Name:2-ethyl-5-phenylisoxazolium-3'-sulfonate
CAS:4156-16-5
Purity:0.99 Package:1kg
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CAS:4156-16-5
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CAS:4156-16-5
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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Basic information
Product Name:2-Ethyl-5-phenylisoxazolium-3'-sulfonate
Synonyms:NEPIS;N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE;WOODWARDS REAGENT K;WOODWARD'S 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+%
CAS:4156-16-5
MF:C11H11NO4S
MW:253.27
EINECS:223-988-7
Product Categories:Biochemistry;Condensation & Active Esterification;Coupling Reactions (Peptide Synthesis);Peptide Synthesis;Synthetic Organic Chemistry
Mol File:4156-16-5.mol
2-Ethyl-5-phenylisoxazolium-3'-sulfonate Structure
2-Ethyl-5-phenylisoxazolium-3'-sulfonate Chemical Properties
Melting point 216-219 °C (dec.)
density 1.3854 (rough estimate)
refractive index 1.4790 (estimate)
storage temp. Store at RT.
Merck 10050
BRN 4149224
CAS DataBase Reference4156-16-5(CAS DataBase Reference)
Safety Information
Hazard Codes Xn
Risk Statements 22
WGK Germany 3
MSDS Information
ProviderLanguage
SigmaAldrich English
2-Ethyl-5-phenylisoxazolium-3'-sulfonate Usage And Synthesis
Chemical Propertieswhite to off-white crystalline powder
UsesPeptide-bond former.
Purification MethodsCrystallise 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
Tag:2-Ethyl-5-phenylisoxazolium-3'-sulfonate(4156-16-5) Related Product Information
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