DPO-1

Name: DPO-1
Brand: Tocris Bioscience
SKU: 2533
Rating: 5 (1 reviews)

Tocris Bioscience, part of Bio-Techne | Catalog # 2533

(1)

Citations (23)

COA / SDS

Blocker of KV1.5 channel and IKur current

Key Product Details

Description:	Blocker of K_V1.5 channel and I_Kur current
Alternative Names:	Diphenyl phosphine oxide-1
Chemical Name:	[1S-(1α,2α,5β)]-[5-Methyl-2-(1-methylethyl)cyclohexyl]diphenylphosphine oxide
Purity:	≥99% (HPLC)
Molecular Weight:	340.44

View Full Technical Details for DPO-1

Technical Data
Citations / Reviews (1)

Biological Activity for DPO-1

DPO-1 is a blocker of I_Kur ultrarapid delayed rectifier potassium current and K_V1.5 channels (IC₅₀ = 0.31 μM for rK_V1.5). Displays selectivity for inhibition of I_Kur over I_to (8-fold), I_K1, I_Kr and I_Ks (20-fold) in native myocytes and selectivity for rat recombinant K_V1.5 over K_V3.1 (~ 15-fold). Increases action potential duration in atrial but not ventricular myocytes and prevents atrial arrhythmia.

Technical Data for DPO-1

M. Wt	340.44
Formula	C₂₂H₂₉OP
Storage	Store at +4°C
Purity	≥99% (HPLC)
CAS Number	43077-30-1
PubChem ID	21678144
InChi Key	BPCNGVCAHAIZEE-COPCDDAFSA-N
Smiles	C[C@@H]1CC[C@@H]([C@@H](C)C)[C@@H]([P@@](C2=CC=CC=C2)(C3=CC=CC=C3)=O)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 for DPO-1

	Solvent	Max Conc. mg/mL	Max Conc. mM
Solubility
Solubility	ethanol	34.04	100

Preparing Stock Solutions for DPO-1

The following data is based on the product molecular weight 340.44.

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.

Concentration / Solvent Volume / Mass	1 mg	5 mg	10 mg
1 mM	2.94 mL	14.69 mL	29.37 mL
5 mM	0.59 mL	2.94 mL	5.87 mL
10 mM	0.29 mL	1.47 mL	2.94 mL
50 mM	0.06 mL	0.29 mL	0.59 mL

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References for DPO-1

References are publications that support the biological activity of the product.

Regan In vivo cardiac electrophysiologic effects of a novel diphenylphosphine oxide I_Kur blocker, (2-isopropyl-5-methylcyclohexyl) diphenylphosphine oxide, in rat and nonhuman primate. J.Pharmacol.Exp.Ther. 2006 PMID: 16243963
Lagrutta Novel, potent inhibitors of human Kv1.5 K⁺ channels and ultrarapid activating delayed rectifier potassium current. J.Pharmacol.Exp.Ther. 2006 PMID: 16522807
Stump In vivo antiarrhythmic and cardiac electrophysiologic effects of a novel diphenylphosphine oxide I_Kur blocker (2-isopropyl-5-methylcyclohexyl) diphenylphosphine oxide. J.Pharmacol.Exp.Ther. 2005 PMID: 16157659