1. Neuronal Signaling
  2. Serotonin Transporter
  3. Paroxetine maleate

Paroxetine maleate  (Synonyms: BRL29060 maleate)

Cat. No.: HY-110029 Purity: 99.64%
Handling Instructions Technical Support

Paroxetine maleate is a potent and selective inhibitor of SSRI. Paroxetine maleate is used in generalized anxiety disorder, post traumatic stress disorder, premenstrual dysphoric disorder and chronic headache research.

For research use only. We do not sell to patients.

CAS No. : 64006-44-6

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
In-stock
Solution
10 mM * 1 mL in DMSO In-stock
Solid
10 mg In-stock
50 mg In-stock
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 6 publication(s) in Google Scholar

Other Forms of Paroxetine maleate:

Top Publications Citing Use of Products

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    CCK-8 assay was performed with different concentrations of Paroxetine (0.0625-10 μM) in BMMs for 1 day and 3 days.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    Assessment of mRNA expression levels of osteoclastogenesis-associated marker genes after administration with Paroxetine (0.0625-2.5 μM) by RT-qPCR, including NFATc1, c-fos, RANK, TRAP, Cathepsin K, and MMP9. he results showed that Paroxetine inhibited the expression of NFATc1, c-fos, RANK, TRAP, Cathepsin K, and MMP9 genes in a concentration-dependent manner.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    Assessment of protein expression levels of NFATc1, c-fos, Cathepsin K and MMP9 after administration with Paroxetine (0.0625-2.5 μM; pretreatment 2 h before stimulation+ 3 d after stimulation) by Western blot. The results demonstrated that, following RANKL stimulation, the protein expression levels of NFATc1, c-fos, CTSK, and MMP9 significantly increased. However, Paroxetine reduced the expression levels of these proteins in osteoclasts in a concentration-dependent manner.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    Representative fluorescence images of P65 nuclear translocation following RANKL stimulation without or with Paroxetine (PA) (pretreatment 6 h). The results showed that RANKL stimulation led to a significant increase in the mean nuclear fluorescence intensity of p65, whereas Paroxetine treatment attenuated this effect.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    Histopathology photographs of femoral samples after HE-stained sections. The results revealed that the trabecular bone in the distal femoral region of mice in the LPS group became sparse and thin. In contrast, Paroxetine (PA, 20 mg/kg; i.p.; once daily for 10 days) effectively alleviated bone loss, as evidenced by the intact and well-ordered arrangement of trabeculae in mice of this group.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Drug Des Devel Ther. 2026 Jan 27;20:1-16.

    Representative TRAP staining images of RANKL-induced osteoclasts treated with Paroxetine (2.5 μM) on specified days. The results showed that the addition of Paroxetine during the early stage of differentiation (days 1-3) significantly inhibited osteoclast formation. In contrast, when bone marrow-derived macrophages (BMMs) were exposed to Paroxetine from days 3-5 or days 5-7, the number of osteoclasts was also reduced, but the inhibitory effect was less pronounced compared to the early-stage (days 1–3) exposure.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: NPJ Digit Med. 2025 Nov 17;8(1):663.  [Abstract]

    Heat map display of cell viabilities of A549 (Left) and H1299 (Right) cells after incubation with different concentrations of anti-ED compounds (Paroxetine (10–200 μg/mL), et al.) for 48 h. The results showed that paroxetine did not significantly promote tumor cell proliferation; instead, it exerted a mild inhibitory effect on cell growth at higher concentrations.

    Paroxetine maleate purchased from MedChemExpress. Usage Cited in: Cell Rep. 2025 Apr 2;44(4):115489.  [Abstract]

    Paroxetine (5 mg/kg; i.p.; once daily for 2–3 weeks) alleviated pain and depression-like symptoms in mice subjected to chronic restraint stress (CRS).
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Paroxetine maleate is a potent and selective inhibitor of SSRI. Paroxetine maleate is used in generalized anxiety disorder, post traumatic stress disorder, premenstrual dysphoric disorder and chronic headache research[1].

    Clinical Trial
    Molecular Weight

    445.44

    Formula

    C23H24FNO7

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    OC(/C=C\C(O)=O)=O.FC(C=C1)=CC=C1[C@H](CCNC2)[C@@H]2COC3=CC=C(OCO4)C4=C3

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    Store at room temperature, keep dry and cool

    In solvent -80°C 1 year
    -20°C 6 months
    Solvent & Solubility
    In Vitro: 

    DMSO : 100 mg/mL (224.50 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.2450 mL 11.2249 mL 22.4497 mL
    5 mM 0.4490 mL 2.2450 mL 4.4899 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    • Molarity Calculator

    • Dilution Calculator

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    Mass
    =
    Concentration
    ×
    Volume
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    Molecular Weight *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

    ×
    Volume (final)

    V2

    In Vivo:

    Select the appropriate dissolution method based on your experimental animal and administration route.

    For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
    To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 5 mg/mL (11.22 mM); Clear solution

      This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

      Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
    • Protocol 2

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 5 mg/mL (11.22 mM); Clear solution

      This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

      Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
    DMSO +
    +
    %
    Tween-80 +
    %
    Saline
    Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
    The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
    Calculation results:
    Working solution concentration: mg/mL
    Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
    Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
     If the continuous dosing period exceeds half a month, please choose this protocol carefully.
    Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
    Purity & Documentation
    References

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.2450 mL 11.2249 mL 22.4497 mL 56.1243 mL
    5 mM 0.4490 mL 2.2450 mL 4.4899 mL 11.2249 mL
    10 mM 0.2245 mL 1.1225 mL 2.2450 mL 5.6124 mL
    15 mM 0.1497 mL 0.7483 mL 1.4966 mL 3.7416 mL
    20 mM 0.1122 mL 0.5612 mL 1.1225 mL 2.8062 mL
    25 mM 0.0898 mL 0.4490 mL 0.8980 mL 2.2450 mL
    30 mM 0.0748 mL 0.3742 mL 0.7483 mL 1.8708 mL
    40 mM 0.0561 mL 0.2806 mL 0.5612 mL 1.4031 mL
    50 mM 0.0449 mL 0.2245 mL 0.4490 mL 1.1225 mL
    60 mM 0.0374 mL 0.1871 mL 0.3742 mL 0.9354 mL
    80 mM 0.0281 mL 0.1403 mL 0.2806 mL 0.7016 mL
    100 mM 0.0224 mL 0.1122 mL 0.2245 mL 0.5612 mL
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    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    Product Name:
    Paroxetine maleate
    Cat. No.:
    HY-110029
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