Ketanserin

Catalog No.S2232 Batch:S223203

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Technical Data

Formula

C22H22FN3O3
Molecular Weight 395.43 CAS No. 74050-98-9
Solubility (25°C)* In vitro DMSO 3 mg/mL (7.58 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
0.3mg/ml Taking the 1 mL working solution as an example, add 50 μL of 6 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
Clear solution
4%DMSO 40%PEG300 4%Tween80 52%ddH2O
1.0mg/ml Taking the 1 mL working solution as an example, add 40 μL 25 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 40 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 520 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description Ketanserin (R41468, Ketanserinum) is a specific 5-HT2A serotonin receptor antagonist with Ki of 2.5 nM for rat and human 5-HT2A, used as an antihypertensive drug.
Targets
5-HT2A [7] 5-HT2C (Rat) [7] 5-HT2C (Human) [7]
2.5 nM(Ki) 50 nM(Ki) 100 nM(Ki)
In vitro

Ketanserin causes a dose-dependent inhibition on the contractile responses to 5-hydroxytryptamine of isolated rat caudal artery, canine basilar, carotid, coronary and gastrosplenic arteries, canine gastrosplenic veins and canine saphenous veins. Ketanserin inhibits the contractions of rat caudal arteries and canine saphenous veins caused by postjunctional alpha adrenergic activation. Ketanserin depresses and in certain experiments reverses the vasoconstrictor response to 5-hydroxytryptamine in the perfused guinea-pig stomach. [1] Ketanserin is found to attenuate the excitatory responses produced by norepinephrine, an alpha 1-adrenoceptor-mediated response, in the lateral geniculate nucleus. Ketanserin potentiates rather than attenuates, the inhibitory effect of 5-HT in the lateral geniculate nucleus. [2] Ketanserin significantly prolongs action potential duration (APD) at 50% repolarization by 218% and APD at 90% repolarization by 256% with no significant effect on other action potential parameters in rat ventricular myocytes. Ketanserin results in a concentration- and time-dependent inhibition of charge area of Ito evaluated by integration with an EC50 of 8.3 μM. Ketanserin also blocks Ito and sustained current (ISus) in a dose-dependent manner with an EC50 of 11.2 μM and has no significant effect on both the inward rectifier potassium current and the L-type calcium current. [3]
In vivo

Ketanserin produces dose-dependent antinociception in the hot-plate and acetic acid-induced writhing tests with ED50 values (95% confidence limit) of 1.51 and 0.62 mg/kg, respectively, but is without any significant effect on the tail-flick test. [4]

Protocol (from reference)

Customer Product Validation

Data from [Data independently produced by , , Neurosignals, 2017, 25(1):39-53]

Selleck's Ketanserin has been cited by 4 publications

Serotonin-induced vascular permeability is mediated by transient receptor potential vanilloid 4 in the airways and upper gastrointestinal tract of mice [ Lab Invest, 2021, 1-14] PubMed: 33859334
Serotonin receptors 5-HTR2A and 5-HTR2B are involved in cigarette smoke-induced airway inflammation, mucus hypersecretion and airway remodeling in mice. [ Int Immunopharmacol, 2019, 10.1016/j.intimp.2019.106036] PubMed: 31787571
Antiproliferative activities of the second-generation antipsychotic drug sertindole against breast cancers with a potential application for treatment of breast-to-brain metastases. [ Sci Rep, 2018, 8(1):15753] PubMed: 30361678
Stimulation of Anxiety-Like Behavior via ERK Pathway by Competitive Serotonin Receptors 2A and 1A in Post-Traumatic Stress Disordered Mice. [ Neurosignals, 2017, 25(1):39-53] PubMed: 28977803

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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