2-Ethyl-5-phenylisoxazolium-3'-sulfonate
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- $55 - $5333
- Product name: 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- CAS: 4156-16-5
- MF: C11H11NO4S
- MW: 253.27
- EINECS:223-988-7
- MDL Number:MFCD00012128
- Synonyms: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
19 prices
Selected condition:
Brand
- aablocks
- ACHEMBLOCK
- AK Scientific
- American Custom Chemicals Corporation
- Biosynth
- ChemScene
- Labseeker
- Sigma-Aldrich
Package
- 100mg
- 250mg
- 0.5g
- 1g
- 2g
- 5g
- 10G
- 25G
- 50g
- Manufactureraablocks
- Product numberAA003H4G
- Product descriptionWoodward's Reagent K 98%
- Packaging100mg
- Price$64
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003H4G
- Product descriptionWoodward's Reagent K 95%
- Packaging250mg
- Price$68
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003H4G
- Product descriptionWoodward's Reagent K 95%
- Packaging1g
- Price$152
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA003H4G
- Product descriptionWoodward's Reagent K 95%
- Packaging5g
- Price$557
- Updated2026-05-28
- Buy
- ManufacturerACHEMBLOCK
- Product numberAD242100
- Product description3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95%
- Packaging5G
- Price$600
- Updated2026-05-27
- Buy
- ManufacturerACHEMBLOCK
- Product numberAD242100
- Product description3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95%
- Packaging25G
- Price$1560
- Updated2026-05-27
- Buy
- ManufacturerACHEMBLOCK
- Product numberAD242100
- Product description3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95%
- Packaging1G
- Price$150
- Updated2026-05-27
- Buy
- ManufacturerAK Scientific
- Product numberV1143
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging1g
- Price$207
- Updated2021-12-16
- Buy
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberCHM0009608
- Product description3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE 95.00%
- Packaging10G
- Price$1431.05
- Updated2021-12-16
- Buy
- ManufacturerBiosynth
- Product numberFE41767
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging1g
- Price$209.89
- Updated2026-06-04
- Buy
- ManufacturerBiosynth
- Product numberFE41767
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging0.5g
- Price$150
- Updated2026-06-04
- Buy
- ManufacturerBiosynth
- Product numberFE41767
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging2g
- Price$389.4
- Updated2026-06-04
- Buy
- ManufacturerBiosynth
- Product numberFE41767
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging5g
- Price$843.7
- Updated2026-06-04
- Buy
- ManufacturerBiosynth
- Product numberFE41767
- Product description2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Packaging10g
- Price$1298
- Updated2026-06-04
- Buy
- ManufacturerChemScene
- Product numberCS-0452289
- Product descriptionWoodward's Reagent K ≥98%
- Packaging250mg
- Price$55
- Updated2026-06-04
- Buy
- ManufacturerChemScene
- Product numberCS-0452289
- Product descriptionWoodward's Reagent K ≥98%
- Packaging1g
- Price$130
- Updated2026-06-04
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA003H4G | Woodward's Reagent K 98% | 100mg | $64 | 2026-05-28 | Buy |
| aablocks | AA003H4G | Woodward's Reagent K 95% | 250mg | $68 | 2026-05-28 | Buy |
| aablocks | AA003H4G | Woodward's Reagent K 95% | 1g | $152 | 2026-05-28 | Buy |
| aablocks | AA003H4G | Woodward's Reagent K 95% | 5g | $557 | 2026-05-28 | Buy |
| ACHEMBLOCK | AD242100 | 3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95% | 5G | $600 | 2026-05-27 | Buy |
| ACHEMBLOCK | AD242100 | 3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95% | 25G | $1560 | 2026-05-27 | Buy |
| ACHEMBLOCK | AD242100 | 3-(2-Ethyl-2H-isoxazol-1-ium-5-yl)benzenesulfonate 95% | 1G | $150 | 2026-05-27 | Buy |
| AK Scientific | V1143 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 1g | $207 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0009608 | 3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE 95.00% | 10G | $1431.05 | 2021-12-16 | Buy |
| Biosynth | FE41767 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 1g | $209.89 | 2026-06-04 | Buy |
| Biosynth | FE41767 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 0.5g | $150 | 2026-06-04 | Buy |
| Biosynth | FE41767 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 2g | $389.4 | 2026-06-04 | Buy |
| Biosynth | FE41767 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 5g | $843.7 | 2026-06-04 | Buy |
| Biosynth | FE41767 | 2-Ethyl-5-phenylisoxazolium-3'-sulfonate | 10g | $1298 | 2026-06-04 | Buy |
| ChemScene | CS-0452289 | Woodward's Reagent K ≥98% | 250mg | $55 | 2026-06-04 | Buy |
| ChemScene | CS-0452289 | Woodward's Reagent K ≥98% | 1g | $130 | 2026-06-04 | Buy |
Properties
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
Major Application :peptide synthesis
InChI :1S/C11H11NO4S/c1-2-12-7-6-11(16-12)9-4-3-5-10(8-9)17(13,14)15/h3-8H,2H2,1H3
InChIKey :MWOOKDULMBMMPN-UHFFFAOYSA-N
SMILES :CC[n+]1ccc(o1)-c2cccc(c2)S([O-])(=O)=O
CAS DataBase Reference :4156-16-5(CAS DataBase Reference)
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
Major Application :peptide synthesis
InChI :1S/C11H11NO4S/c1-2-12-7-6-11(16-12)9-4-3-5-10(8-9)17(13,14)15/h3-8H,2H2,1H3
InChIKey :MWOOKDULMBMMPN-UHFFFAOYSA-N
SMILES :CC[n+]1ccc(o1)-c2cccc(c2)S([O-])(=O)=O
CAS DataBase Reference :4156-16-5(CAS DataBase Reference)
Safety Information
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| Signal word: | Warning | ||||||||||||||
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Description
Coupling reagent for peptide synthesis. Modification of carboxylic groups in enzymes.More related product prices
Ethyl acetate Ethyl acrylate Isoxazole Sulfamethoxazole Sulfisoxazole Ethyl formate Ethyl pyruvate Ethyl cyanoacetate Ethylparaben Etanol 5-Methylisoxazole 4156-16-5Related product price
-
Ethyl acetate
$22.03-23615.9 -
Ethyl acrylate
$7.62-1374.45 -
Isoxazole
$8-7420




