E45260
Woodward′s reagent K
95%
Synonym(s):
2-Ethyl-5-phenylisoxazolium-3′-sulfonate, NEPIS
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About This Item
Empirical Formula (Hill Notation):
C11H11NO4S
CAS Number:
Molecular Weight:
253.27
Beilstein:
4149224
EC Number:
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22
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Assay
95%
reaction suitability
reaction type: Coupling Reactions
mp
220 °C (dec.) (lit.)
application(s)
peptide synthesis
SMILES string
CC[n+]1ccc(o1)-c2cccc(c2)S([O-])(=O)=O
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
InChI key
MWOOKDULMBMMPN-UHFFFAOYSA-N
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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G Feller et al.
The Journal of biological chemistry, 271(39), 23836-23841 (1996-09-27)
Chloride is the allosteric effector of vertebrate pancreatic and salivary alpha-amylases and of the bacterial alpha-amylase from Alteromonas haloplanctis. Activation experiments of A. haloplanctis alpha-amylase by several monovalent anions show that a negative charge, not restricted to that of Cl-
S R Rao et al.
Indian journal of biochemistry & biophysics, 34(3), 253-258 (1997-06-01)
Maize leaf NADP-malic enzyme was rapidly inactivated by micromolar concentrations of Woodward's reagent K (WRK). The inactivation followed pseudo-first order reaction kinetics. The order of reaction with respect to WRK was 1, suggesting that inactivation was a consequence of the
Paulina Nawłoka et al.
Acta biochimica Polonica, 50(2), 567-572 (2003-07-02)
Effects of several chemical probes selectively modifying various amino-acid residues on the activity of UDP-glucose : solasodine glucosyltransferase from eggplant leaves was studied. It was shown that diethylpyrocarbonate (DEPC), a specific modifier of histidine residues, was strongly inhibitory. However, in
I S Vasil'eva et al.
Prikladnaia biokhimiia i mikrobiologiia, 45(1), 33-37 (2009-02-25)
A new method for synthesis of the conductive complex between polyaniline (PANI) and poly(2-acrylamido-2-methyl-1-propanosulfonic acid) (PAMPS) was proposed; in this method, the immobilized laccase from the basidiomycete Trametes hirsuta is used as a biocatalyst for aniline oxidative polymerization. The conditions
A R Johnson et al.
Protein science : a publication of the Protein Society, 5(2), 382-390 (1996-02-01)
L-Threonine dehydrogenase (TDH) from Escherichia coli is rapidly inactivated and develops a new absorbance peak at 347 nm when incubated with N-ethyl-5-phenylisoxazolium-3'-sulfonate (Woodward's reagent K, WRK). The cofactors, NAD+ or NADH (1.5 mM), provide complete protection against inactivation; L-threonine (60
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