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Cat.No. 1540 - DCPIB | C22H28Cl2O4 | CAS No. 82749-70-0
Description: Selective blocker of VSAC/ICl, swell
Chemical Name: 4-[(2-Butyl-6,7-dichloro-2-cyclopentyl-2,3-dihydro-1-oxo-1H-inden-5-yl)oxy]butanoic acid
Purity: ≥98% (HPLC)
Citations (11)
Reviews (1)

Biological Activity

Potent, selective blocker of the volume-sensitive anion channel (VSAC) in rat pancreatic β-cells (IC50 ~ 2 μM) and ICl,swell in various cardiovascular tissues (IC50 = 4.1 μM in CPAE cells); blockade is voltage-independent. Displays minimal inhibition of other Cl- and K+ currents (< 10% inhibition at 10 μM). Inhibits glucose-stimulated insulin secretion in intact β-cells via VSAC inhibition and indirect KATP channel activation. Reverses cell swelling-induced action potential duration shortening in atrial myocytes and inhibits astroglial swelling in vitro.

Technical Data

M. Wt 427.37
Formula C22H28Cl2O4
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 82749-70-0
PubChem ID 10071166
Smiles CCCCC1(CC2=C(C1=O)C(Cl)=C(Cl)C(OCCCC(O)=O)=C2)C1CCCC1

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

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
ethanol 42.74 100

Preparing Stock Solutions

The following data is based on the product molecular weight 427.37. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.34 mL 11.7 mL 23.4 mL
5 mM 0.47 mL 2.34 mL 4.68 mL
10 mM 0.23 mL 1.17 mL 2.34 mL
50 mM 0.05 mL 0.23 mL 0.47 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.

Bourke et al (1981) Adenosine-stimulated astroglial swelling in cat cerebral cortex in vivo with total inhibition by a non-diuretic acylaryloxyacid derivative. J.Neurosurg. 55 364 PMID: 6267227

Decher et al (2001) DCPIB is a novel selective blocker of ICl,swell and prevents swelling-induced shortening of guinea-pig atrial action potential duration. Br.J.Pharmacol. 134 1467 PMID: 11724753

Best et al (2004) Inhibition of glucose-induced electrical activity in rat pancreatic β-cells by DCPIB, a selective inhibitor of volume-sensitive anion currents. Eur.J.Pharmacol. 489 13 PMID: 15063150

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

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Keywords: DCPIB, DCPIB supplier, Selective, blockers, VSAC, IClswell, volume-sensitive, anion, channels, chloride, Other, Chloride, Channels, 1540, Tocris Bioscience

11 Citations for DCPIB

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

Hawkins et al (2013) Electrophysiological characteristics of enteric neurons isolated from the immortomouse. Proc Natl Acad Sci U S A 58 1516 PMID: 23371009

Hyzinski-García et al (2011) Hypo-osmotic swelling modifies glutamate-glutamine cycle in the cerebral cortex and in astrocyte cultures. J Neurochem 118 140 PMID: 21517854

Li and Olson (2008) Purinergic activation of anion conductance and osmolyte efflux in cultured rat hippocampal neurons. Am J Physiol Cell Physiol 295 C1550 PMID: 18923056

Zhang et al (2008) DCPIB, a specific inhibitor of volume regulated anion channels (VRACs), reduces infarct size in MCAo and the release of glutamate in the ischemic cortical penumbra. Exp Neurol 210 514 PMID: 18206872

Draganov et al (2015) Modulation of P2X4/P2X7/Pannexin-1 sensitivity to extracellular ATP via Ivermectin induces a non-apoptotic and inflammatory form of cancer cell death. J Cell Sci 5 16222 PMID: 26552848

Catalán et al (2015) A fluid secretion pathway unmasked by acinar-specific Tmem16A gene ablation in the adult mouse salivary gland. Int J Clin Exp Med 112 2263 PMID: 25646474

Schlichter et al (2010) Swelling activated Cl- channels in microglia: Biophysics, pharmacology and role in glutamate release. Channels (Austin) 5 128 PMID: 21150294

Raucci et al (2010) Exogenous and endogenous ceramides elicit volume-sensitive chloride current in ventricular myocytes. Cardiovasc Res 86 55 PMID: 20008476

Li et al (2012) Mechanisms of ATP release by human trabecular meshwork cells, the enabling step in purinergic regulation of aqueous humor outflow. J Cell Physiol 227 172 PMID: 21381023

Takada et al (2014) Mechanosensitive ATP release from hemichannels and Ca2+ influx through TRPC6 accelerate wound closure in keratinocytes. Dig Dis Sci 127 4159 PMID: 25097230

Sabirov et al (2013) Volume-sensitive anion channels mediate osmosensitive glutathione release from rat thymocytes. PLoS One 8 e55646 PMID: 23383255

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

Reviews for DCPIB

Average Rating: 4 (Based on 1 Review.)

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a VRACs blocker
By Anonymous on 02/02/2018
Assay Type: Ex Vivo
Species: Rat

DCPIB is a volume regulated anion channel. We used at 20-30microM in rat brain slice.

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