Name: Varenicline Tartrate (CP 526555-18)
Brand: Selleck Chemicals
SKU: S1440
Availability: InStock
Rating: 5 (1 reviews)

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Quality Control

Batch: Purity: 99.92%

99.92

Related Targets	Adrenergic Receptor 5-HT Receptor COX Calcium Channel Histamine Receptor Dopamine Receptor GABA Receptor TRP Channel Cholinesterase (ChE) GluR
Other AChR Products	PNU-120596 Benzethonium Chloride Arecoline HBr Otilonium Bromide Lycorine Hyoscyamine (-)-Huperzine A (HupA) Nitenpyram Cytisine Chelidonine

Solubility

In vitro
Batch:

Water : 72 mg/mL

DMSO : 16 mg/mL (44.27 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.8mg/ml (2.21mM)	Taking the 1 mL working solution as an example, add 50 μL of 16 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	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.05mg/ml (2.91mM)	Taking the 1 mL working solution as an example, add 50 μL of 21 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

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: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 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.

Chemical Information, Storage & Stability

Molecular Weight	361.35	Formula	C₁₃H₁₃N₃·C₄H₆O₆	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	375815-87-5	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	Chantix, Champix,CP 526555-18			Smiles	C1C2CNCC1C3=CC4=NC=CN=C4C=C23.C(C(C(=O)O)O)(C(=O)O)O

Mechanism of Action

Targets/IC₅₀/Ki	AChR
In vitro	Varenicline is a partial agonist with 45% of nicotine's maximal efficacy atalpha4beta2 nAChRs in HEK cells expressing nAChRs. Varenicline is a potent, partial agonist at alpha4beta2 receptors, with an EC50 of 2.3 mM and an efficacy (relative to acetylcholine) of 13.4%. Varenicline has lower potency and higher efficacy at alpha3beta4 receptors, with an EC50 of 55 mM and an efficacy of 75%.
In vivo	Varenicline has significantly lower (40-60%) efficacy than nicotine in stimulating [(3)H]-dopamine release from rat brain slices in vitro and in increasing dopamine release from rat nucleus accumbens in vivo, while it is more potent than Nicotine. Varenicline effectively attenuates the nicotine-induced dopamine release to the level of the effect of Varenicline alone, consistent with partial agonism. Varenicline reduces nicotine self-administration in rats and supports lower self-administration break points than nicotine. Varenicline dose-dependently reduces nicotine self-administration and attenuates both nicotine prime and combined nicotine prime plus nicotine-paired cue-induced reinstatement. Varenicline, a partial agonist at thealpha4beta2 nAChRs, reduces nicotine intake and was recently approved as a smoking cessation aid. Varenicline selectively reduces ethanol but not sucrose seeking using an operant self-administration drinking paradigm and also decreases voluntary ethanol but not water consumption in animals chronically exposed to ethanol for 2 months before Varenicline treatment.
References	[1] https://pubmed.ncbi.nlm.nih.gov/17157884/ [2] https://pubmed.ncbi.nlm.nih.gov/16766716/ [3] https://pubmed.ncbi.nlm.nih.gov/19967529/ [4] https://pubmed.ncbi.nlm.nih.gov/17626178/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT01680887	Completed	Cocaine Dependence	University of Pennsylvania	August 2012	Phase 2

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Varenicline Tartrate (CP 526555-18) AChR agonist

Chemical Structure

Molecular Weight: 361.35