Atomoxetine HCl (Tomoxetine; LY 139603)

Alias: LY 139603 HCl; LY-139603 HCl;Atomoxetine; LY139603 HCl;Tomoxetine; Tomoxetina; Tomoxetinum; (-)-Tomoxetine; Strattera; Tomoxetine hydrochloride; LY 139603; (R)-Tomoxetine hydrochloride
Cat No.:V1023 Purity: ≥98%
Atomoxetine HCl (formerly LY139603; LY-139603; Tomoxetine; Strattera; Tomoxetina; Tomoxetinum), the hydrochloride salt of Atomoxetine, is a potent and selective norepinephrine (NE) transporter/reuptate inhibitor that has been used for treating attention-deficit hyperactivity disorder (ADHD).
Atomoxetine HCl (Tomoxetine; LY 139603) Chemical Structure CAS No.: 82248-59-7
Product category: 5-HT Receptor
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
50mg
100mg
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Other Forms of Atomoxetine HCl (Tomoxetine; LY 139603):

  • Atomoxetine
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Atomoxetine HCl (formerly LY139603; LY-139603; Tomoxetine; Strattera; Tomoxetina; Tomoxetinum), the hydrochloride salt of Atomoxetine, is a potent and selective norepinephrine (NE) transporter/reuptate inhibitor that has been used for treating attention-deficit hyperactivity disorder (ADHD). It has a Ki of 5 nM for norepinephrine (NE) transporter/reuptate inhibition, and it has 290- and 15-fold lower affinity for human 5-HT and DA transporters, respectively. The treatment of ADHD with atomoxetine has received approval.

Biological Activity I Assay Protocols (From Reference)
Targets
Norepinephrine (NE) transporter ( Ki = 5 nM ); 5-HT ( Ki = 77 nM )
ln Vitro

In vitro activity: Atomoxetine is a selective norepinephrine reuptake inhibitor that binds to serotonin and dopamine transporters at a Ki of 5 nM as opposed to 77 and 1451 nM. [1]

ln Vivo
Atomoxetine triples the extracellular (EX) levels of NE in the prefrontal cortex (PFC) in microdialysis studies, but it has no effect on the levels of 5-HTEX. Additionally, atomoxetine triples the concentration of DAEX in PFC while leaving DAEX unchanged in the striatum or nucleus accumbens. Atomoxetine raises Fos in PFC by a factor of 3.7, but not in the nucleus accumbens or striatum.[1] In animal models of depression, atomoxetine exhibits activity by selectively inhibiting the presynaptic uptake of norepinephrine in adrenergic neurons.[2][3]
Animal Protocol


References

[1]. Neuropsychopharmacology . 2002 Nov;27(5):699-711.

[2]. Pharmacol Exp Ther . 1985 Jan;232(1):139-43.

[3]. J Pharmacol Exp Ther . 1982 Jul;222(1):61-5.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C17H22CLNO
Molecular Weight
291.82
Exact Mass
255.16
Elemental Analysis
C, 69.97; H, 7.60; Cl, 12.15; N, 4.80; O, 5.48
CAS #
82248-59-7
Related CAS #
Atomoxetine; 83015-26-3; Atomoxetine-d5 hydrochloride
Appearance
Solid powder
SMILES
CC1=CC=CC=C1O[C@H](CCNC)C2=CC=CC=C2.Cl
InChi Key
LUCXVPAZUDVVBT-UNTBIKODSA-N
InChi Code
InChI=1S/C17H21NO.ClH/c1-14-8-6-7-11-16(14)19-17(12-13-18-2)15-9-4-3-5-10-15;/h3-11,17-18H,12-13H2,1-2H3;1H/t17-;/m1./s1
Chemical Name
(3R)-N-methyl-3-(2-methylphenoxy)-3-phenylpropan-1-amine;hydrochloride
Synonyms
LY 139603 HCl; LY-139603 HCl;Atomoxetine; LY139603 HCl;Tomoxetine; Tomoxetina; Tomoxetinum; (-)-Tomoxetine; Strattera; Tomoxetine hydrochloride; LY 139603; (R)-Tomoxetine hydrochloride
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~58 mg/mL (~198.8 mM)
Water: ~2 mg/mL (~6.8 mM)
Ethanol: ~37 mg/mL (~126.8 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.57 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (8.57 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (8.57 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 8.33 mg/mL (28.54 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication (<60°C).

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.4268 mL 17.1338 mL 34.2677 mL
5 mM 0.6854 mL 3.4268 mL 6.8535 mL
10 mM 0.3427 mL 1.7134 mL 3.4268 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04565288 Active
Recruiting
Drug: Atomoxetine
Drug: Placebo
Alcohol Use Disorder Brown University May 6, 2021 Phase 2
NCT04354103 Recruiting Drug: Atomoxetine Tourette Syndrome Poitiers University Hospital May 31, 2022 Phase 2
NCT03919955 Recruiting Drug: Atomoxetine
Drug: Oxybutynin
Sleep Apnea Brigham and Women's Hospital September 3, 2019 Phase 2
NCT04216186 Recruiting Drug: Atomoxetine
Drug: Coenzyme Q
ADHD Sherief Abd-Elsalam November 1, 2018 Phase 3
NCT05550246 Recruiting Drug: Asimadoline
Drug: Placebo
Obstructive Sleep Apnea Brigham and Women's Hospital May 5, 2022 Phase 1
Phase 2
Biological Data
  • Atomoxetine HCl
    Time course of the effects of reboxetine (3 mg/kg i.p.) (A) and methylphenidate (3 mg/kg i.p.) administration (B) on extracellular monoamine levels in prefrontal cortex of freely moving rat.Neuropsychopharmacology.2002 Nov;27(5):699-711.
  • Atomoxetine HCl
    The effects of local perfusion of atomoxetine on extracellular monoamine levels in prefrontal cortex of freely moving rat.


    Atomoxetine HCl
    Time course of the effects of atomoxetine administration on extracellular dopamine levels in prefrontal cortex (PFC), striatum and nucleus accumbens of freely moving rat.Neuropsychopharmacology.2002 Nov;27(5):699-711.


  • Atomoxetine HCl
    Time course of the effects of control (vehicle) or atomoxetine (0.3, 1, 3 mg/kg i.p.) administration on extracellular concentrations of norepinephrine (NE) (A), dopamine (DA) (B) and serotonin (5-HT) (C) in prefrontal cortex of freely moving
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