KN-93 HCl

Alias: KN93; KN 93; KN-93; KN-93 HCl.
Cat No.:V2579 Purity: ≥98%
KN-93 HClis a potent,cell-permeable, reversible and specific inhibitor of Ca2+/calmodulin-dependent protein kinase II (CaMKII) with Ki of 0.37 μM, and withno remarkable inhibitory effects on APK, PKC, MLCK or Ca2+-PDE activities.
KN-93 HCl Chemical Structure CAS No.: 1956426-56-4
Product category: CaMK
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
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Other Forms of KN-93 HCl:

  • KN-93
  • KN-93 phosphate
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

KN-93 HCl is a potent, cell-permeable, reversible and specific inhibitor of Ca2+/calmodulin-dependent protein kinase II (CaMKII) with Ki of 0.37 μM, and with no remarkable inhibitory effects on APK, PKC, MLCK or Ca2+-PDE activities. KN-93 suppresses ventricular arrhythmia induced by LQT2 without decreasing TDR. KN-93 inhibits androgen receptor activity and induces cell death irrespective of p53 and Akt status in prostate cancer. KN-93 ameliorates levodopa-induced dyskinesia in a rat model of Parkinson's disease. KN-93 protects rat cerebral cortical neurons from N-methyl-D-aspartic acid-induced injury.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
Upon two days of treatment with KN-93 hydrochloride, 95 percent of the cells were in the G1 phase. G1 arrest is reversible, and cells peak into the S and G2-M phases one day after KN-93 hydrochloride is released. KN-93 hydrochloride also inhibits the proliferation of NIH 3T3 fibroblasts in response to basic fibroblast growth factor, platelet-derived growth factor-BB, and epidermal growth factor [1]. While KN-93 hydrochloride strongly dissipates the proton gradient produced in stomach membrane vesicles and decreases cavity volume, it inhibits the action of H+ and K+-ATPase [2]. KN-93 hydrochloride (0.5 μM) inhibits the development of stress elevations in LV during early afterdepolarization and action potential lengthening. Early afterdepolarization is characterized by a rise in Ca2+-independent CaM kinase activity, which is inhibited by KN-93 hydrochloride [3].
ln Vivo
KN-93 (5 μg) ameliorates levodopa-induced dyskinesia by lowering the expression of pGluR1S845 in a rat model of Parkinson’s disease. In MRL/lpr Foxp3-GFP mice, KN-93 results in a significant induction of Treg cells in the spleen, peripheral lymph nodes and peripheral blood, and decreases skin and kidney damage.
Animal Protocol
Dissolved in 4 μL of 0.9% physiological saline containing 0.02% ascorbic acid; 5 μg; Intrastriatal administration
Sprague Dawley female rats
References
[1]. Tombes RM, et al. G1 cell cycle arrest and apoptosis are induced in NIH 3T3 cells by KN-93, an inhibitor of CaMK-II (the multifunctional Ca2+/CaM kinase). Cell Growth Differ. 1995 Sep;6(9):1063-70.
[2]. Li J, et al. Curcumin Attenuates Retinal Vascular Leakage by Inhibiting Calcium/Calmodulin-Dependent Protein Kinase II Activity in Streptozotocin-Induced Diabetes. Cell Physiol Biochem. 2016;39(3):1196-208.
[3]. Mamiya N, et al. Inhibition of acid secretion in gastric parietal cells by the Ca2+/calmodulin-dependent protein kinase II inhibitorKN-93. Biochem Biophys Res Commun. 1993 Sep 15;195(2):608-15.
[4]. Anderson ME, et al. KN-93, an inhibitor of multifunctional Ca++/calmodulin-dependent protein kinase, decreases early afterdepolarizations in rabbit heart. J Pharmacol Exp Ther. 1998 Dec;287(3):996-1006.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C26H30CL2N2O4S
Molecular Weight
537.5
CAS #
1956426-56-4
Related CAS #
KN-93;139298-40-1;KN-93 phosphate;1913269-12-1
SMILES
ClC1C([H])=C([H])C(=C([H])C=1[H])/C(/[H])=C(\[H])/C([H])([H])N(C([H])([H])[H])C([H])([H])C1=C([H])C([H])=C([H])C([H])=C1N(C([H])([H])C([H])([H])O[H])S(C1C([H])=C([H])C(=C([H])C=1[H])OC([H])([H])[H])(=O)=O.Cl[H]
InChi Key
ATHMCQDBXQEIOK-IPZCTEOASA-N
InChi Code
InChI=1S/C26H29ClN2O4S.ClH/c1-28(17-5-6-21-9-11-23(27)12-10-21)20-22-7-3-4-8-26(22)29(18-19-30)34(31,32)25-15-13-24(33-2)14-16-25;/h3-16,30H,17-20H2,1-2H3;1H/b6-5+
Chemical Name
N-[2-[N-(4-Chlorocinnamyl)-N-methylaminomethyl]phenyl]-N-(2-hydroxyethyl)-4-methoxybenzenesulfonamide hydrochloride
Synonyms
KN93; KN 93; KN-93; KN-93 HCl.
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO:31 mg/mL
Water: N/A
Ethanol: N/A
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (4.65 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (4.65 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (4.65 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.8605 mL 9.3023 mL 18.6047 mL
5 mM 0.3721 mL 1.8605 mL 3.7209 mL
10 mM 0.1860 mL 0.9302 mL 1.8605 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
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Biological Data
  • KN-93 HCl

    KN-93 had no antiparkinsonian effect on PD rats.



    KN-93 HCl

    KN-93 treatment reduced levodopa-induced dyskinesia in PD rats.Neuropsychiatr Dis Treat.2013;9:1213-20.
  • KN-93 HCl

    Intrastriatal KN-93 treatment reduced pGluR1S845 levels in PD rats. Total protein levels and membrane levels of GluR1 were decreased in PD rats.Neuropsychiatr Dis Treat.2013;9:1213-20.

  • KN-93 HCl

    Intrastriatal KN-93 treatment reduced the expression of Gad1 (A) and Nur77 (B) in PD rats. 6-OHDA lesions induced increased Gad1 and Nur77 in PD rats.Neuropsychiatr Dis Treat.2013;9:1213-20.
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