Calmidazolium chloride

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Cat.No. 2561 - Calmidazolium chloride | C31H23Cl7N2O | CAS No. 57265-65-3
Description: Calmodulin antagonist
Alternative Names: R 24571
Chemical Name: 1-[Bis(4-chlorophenyl)methyl]-3-[2-(2,4-dichlorophenyl)-2-(2,4-dichlorobenzyloxy)ethyl]-1H-imidazolium chloride
Purity: ≥95% (HPLC)
Citations (3)

Biological Activity

Calmodulin antagonist. Inhibits calmodulin-dependent phosphodiesterase and Ca2+-transporting ATPase with IC50 values of 0.15 and 0.35 μM respectively. Also causes elevation of intracellular calcium in HL-60 cells, independent of calmodulin inhibition.

Technical Data

M. Wt 687.7
Formula C31H23Cl7N2O
Storage Store at +4°C
Purity ≥95% (HPLC)
CAS Number 57265-65-3
PubChem ID 644274
Smiles [Cl-].ClC1=CC=C(C=C1)C(N1C=C[N+](CC(OCC2=CC=C(Cl)C=C2Cl)C2=CC=C(Cl)C=C2Cl)=C1)C1=CC=C(Cl)C=C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 68.77 100
ethanol 68.77 100

Preparing Stock Solutions

The following data is based on the product molecular weight 687.7. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

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Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.45 mL 7.27 mL 14.54 mL
5 mM 0.29 mL 1.45 mL 2.91 mL
10 mM 0.15 mL 0.73 mL 1.45 mL
50 mM 0.03 mL 0.15 mL 0.29 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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References are publications that support the biological activity of the product.

Gietzen (1983) Comparison of the calmodulin antagonists compound 48/80 and calmidazolium. Biochem.J. 216 611 PMID: 6141789

Harper and Daly (2000) Effect of calmidazolium analogs on calcium influx in HL-60 cells. Biochem.Pharmacol. 60 317 PMID: 10856426

Peppiatt et al (2004) Calmidazolium and arachidonate activate a calcium entry pathway that is distinct from store-operated calcium influx in HeLa cells. Biochem.J. 381 929 PMID: 15130089

If you know of a relevant reference for Calmidazolium chloride, please let us know.

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Keywords: Calmidazolium chloride, Calmidazolium chloride supplier, Calmodulin, antagonists, Ca2+, Binding, Protein, modulators, Calcium, Signaling, Signalling, R24571, R, 24571, 2561, Tocris Bioscience

3 Citations for Calmidazolium chloride

Citations are publications that use Tocris products. Selected citations for Calmidazolium chloride include:

Varadarajan et al (2013) Endoplasmic reticulum membrane reorganization is regulated by ionic homeostasis. PLoS One 8 e56603 PMID: 23457590

Kim et al (2018) JIB-04, A Small Molecule Histone Demethylase Inhibitor, Selectively Targets Colorectal Cancer Stem Cells by Inhibiting the Wnt/β-Catenin Signaling Pathway. Sci Rep 8 6611 PMID: 29700375

Hook et al (2014) Calmodulin enhances ribbon replenishment and shapes filtering of synaptic transmission by cone photoreceptors. J Gen Physiol 144 357 PMID: 25311636

Do you know of a great paper that uses Calmidazolium chloride from Tocris? Please let us know.

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