Ondansetron Hydrochloride Dihydrate
For research use only.
Molecular Weight(MW): 365.85
Ondansetron is a highly specific and selective serotonin 5-HT3 receptor antagonist (Ki=6.16 nM), with low affinity for dopamine receptors.
Purity & Quality Control
Choose Selective 5-HT Receptor Inhibitors
|Description||Ondansetron is a highly specific and selective serotonin 5-HT3 receptor antagonist (Ki=6.16 nM), with low affinity for dopamine receptors.|
Ondansetron is a potent, highly selective, competitive antagonist at 5-HT3 receptors. It demonstrates some affinity to other receptor subtypes, including 5-HT1B, 5-HT1C, 5-HT4, opioid, and 1-adrenergic receptors, and to the μ-opioid receptor. However, ondansetron has 1000:1 selectivity toward 5-HT3 receptors. Ondansetron is found to be the most potent HERG-channel blocker among several 5-HT3 antagonists, with an IC50 of 810 nM and has been reported to block Na+ channels.
|In vivo||Ondansetron(Ond) is well tolerated and its side effects are mild. Ond acts on the CNS as well as on the peripheral nervous system (PNS). Ondansetron is available both for oral and intravenous administration. The bioavailability of orally administered ondansetron is only 60%. The low bioavailability is due to a significant first-pass metabolism. The peak plasma concentration of ondansetron is usually reached at approximately 1.5 h after oral administration. A major portion of this drug, about 75%, is bound to plasma proteins. Ondansetron is currently used to prevent and treat nausea and vomiting associated with chemotherapy, radiation treatment and general anesthesia. It has been shown to inhibit GABA and glycine receptor activity in animal models. Therapeutic dose of Ond allows delivery of significantly higher amounts of Dox to the brain tissue in vivo, which is otherwise disallowed by the BBB. The rate of penetration of the blood-brain barrier by Ond is very low.|
|In vitro||DMSO||73 mg/mL warmed (199.53 mM)|
|Water||73 mg/mL warmed (199.53 mM)|
|Ethanol||40 mg/mL warmed (109.33 mM)|
* 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.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation (Different batches have different solubility ratios, please contact Selleck to provide you with the correct ratio)|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
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Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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