1. Membrane Transporter/Ion Channel Neuronal Signaling
  2. GABA Receptor
  3. Baclofen

Baclofen, a lipophilic derivative of γ-aminobutyric acid (GABA), is an orally active, selective metabotropic GABAB receptor (GABABR) agonist with blood-brain barrier permeability. Baclofen mimics the action of GABA and produces slow presynaptic inhibition through the GABAB receptor. Baclofen has high blood brain barrier penetrance. Baclofen has the potential for muscle spasticity research.

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CAS No. : 1134-47-0

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Based on 12 publication(s) in Google Scholar

Other Forms of Baclofen:

Top Publications Citing Use of Products

    Baclofen purchased from MedChemExpress. Usage Cited in: Adv Sci (Weinh). 2025 Oct 20:e07908.  [Abstract]

    GABAB receptor agonist (Baclofen, 0.25 µg/10 µL, i.t.) had no effect on acute morphine analgesia.

    Baclofen purchased from MedChemExpress. Usage Cited in: Adv Sci (Weinh). 2025 Oct 20:e07908.  [Abstract]

    GABAB receptor agonist (Baclofen, 0.25 µg/10 µL, i.t.) had no effect on chronic morphine tolerance.

    Baclofen purchased from MedChemExpress. Usage Cited in: Antioxidants (Basel). 2024 Sep 21;13(9):1141.

    Cell viability assessments were performed on IPEC-J2 cells in the CON, LPS, and LPS + Baclofen (100 μM; 12 h) groups.

    Baclofen purchased from MedChemExpress. Usage Cited in: Antioxidants (Basel). 2024 Sep 21;13(9):1141.

    The mRNA levels of IL-1β, IL-6, and TNF-α were measured by qRT-PCR in the CON, LPS, and LPS + Baclofen (100 μM; 12 h) groups. Baclofen pretreatment led to a considerable diminution in these proinflammatory factors, suggesting that activating GABABR in IPEC-J2 cells exerts anti-inflammatory actions.

    Baclofen purchased from MedChemExpress. Usage Cited in: Life Sci. 2023 Sep 15:329:121984.  [Abstract]

    Cell survival of EGCs after 3 h, 6 h, 12 h, 24 h incubation with control, GABA, Mus and Baclofen (100 μM) alone.

    Baclofen purchased from MedChemExpress. Usage Cited in: Life Sci. 2023 Sep 15:329:121984.  [Abstract]

    Baclofen (10 mg/kg; i.p.; 7 days) noticeably attenuated ileum villous atrophy and inflammatory infiltration in mice challenge of LPS, while Baclofen alone had no obvious impact on ileal tissues.

    Baclofen purchased from MedChemExpress. Usage Cited in: Life Sci. 2023 Sep 15:329:121984.  [Abstract]

    WB analysis showed the expression of GFAP. The results demonstrated that activation of GABABR with Baclofen (10 mg/kg; i.p.; 7 days) strongly impaired the expression of GFAP in the ileum, as compared with the LPS group.
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Baclofen, a lipophilic derivative of γ-aminobutyric acid (GABA), is an orally active, selective metabotropic GABAB receptor (GABABR) agonist with blood-brain barrier permeability. Baclofen mimics the action of GABA and produces slow presynaptic inhibition through the GABAB receptor. Baclofen has high blood brain barrier penetrance. Baclofen has the potential for muscle spasticity research[1][2][3].

    Cellular Effect
    Cell Line Type Value Description References
    CHO-K1 EC50
    750 nM
    Compound: baclofen
    Agonist activity at human recombinant GABABreceptor expressed in CHO-K1 cells assessed as inhibition of intracellular calcium release by FLIPR
    Agonist activity at human recombinant GABABreceptor expressed in CHO-K1 cells assessed as inhibition of intracellular calcium release by FLIPR
    [PMID: 18578471]
    HEK293 EC50
    1.7 μM
    Compound: (+/-)-Baclofen
    Agonist activity at human GABA-B B1/B2 receptor expressed in HEK293 cells assessed as inhibition of forskolin-stimulated cAMP accumulation after 3 hrs by luciferase reporter gene assay
    Agonist activity at human GABA-B B1/B2 receptor expressed in HEK293 cells assessed as inhibition of forskolin-stimulated cAMP accumulation after 3 hrs by luciferase reporter gene assay
    [PMID: 23428109]
    In Vitro

    Baclofen (1, 10 μM; 24 h) causes markedly decreased lactate dehydrogenase (LDH) activity, indicating increased cell viability in wild-type or mutant huntingtin-expressing striatal cells (HD19 or HD43). Baclofen significantly increases chymotrypsin-like proteasome activity and cell viability were in the HD43 cells[3].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    In Vivo

    Baclofen (i.p.; 10 μg/g; twice daily for 3 consecutive days) ameliorates motor deficits in YAC128 HD transgenic mice[3].
    Baclofen can cross the blood-brain barrier and cause depressive effects[4].
    Note that the water solubility of Baclofen makes it difficult to cross the blood-brain barrier (BBB) ??after oral administration, so higher doses may be required in practice[5].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Model: Wild type (WT) and mutant (MT) male YAC128 mice at 13-18 months of age[3]
    Dosage: 10 μg/g
    Administration: IP; twice daily at 9:00 a.m. and 5:00 p.m., for 3 consecutive days; then single dose on the fourth day at 9:00 a.m
    Result: Ameliorated motor deficits in YAC128 HD transgenic mice.
    Increased proteasome activity and reduces neuronal intranuclear inclusions (NIIs) in YAC128 HD transgenic mice.
    Clinical Trial
    Molecular Weight

    213.66

    Formula

    C10H12ClNO2

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    O=C(O)CC(C1=CC=C(Cl)C=C1)CN

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    0.1 M HCl : 10 mg/mL (46.80 mM; Need ultrasonic)

    DMSO : 4.76 mg/mL (22.28 mM; ultrasonic and warming and adjust pH to 4 with 1 M HCl and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : 2 mg/mL (9.36 mM; Need ultrasonic)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 4.6803 mL 23.4017 mL 46.8033 mL
    5 mM 0.9361 mL 4.6803 mL 9.3607 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

    • Molarity Calculator

    • Dilution Calculator

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

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

    This equation is commonly abbreviated as: C1V1 = C2V2

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    In Vivo:

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    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:  PBS

      Solubility: 2.5 mg/mL (11.70 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

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    (per animal)

    μL

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    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Calculation results:
    Working solution concentration: mg/mL
    Purity & Documentation

    Purity: 99.98%

    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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    H2O / DMSO / 0.1 M HCl 1 mM 4.6803 mL 23.4017 mL 46.8033 mL 117.0083 mL
    5 mM 0.9361 mL 4.6803 mL 9.3607 mL 23.4017 mL
    DMSO / 0.1 M HCl 10 mM 0.4680 mL 2.3402 mL 4.6803 mL 11.7008 mL
    15 mM 0.3120 mL 1.5601 mL 3.1202 mL 7.8006 mL
    20 mM 0.2340 mL 1.1701 mL 2.3402 mL 5.8504 mL
    0.1 M HCl 25 mM 0.1872 mL 0.9361 mL 1.8721 mL 4.6803 mL
    30 mM 0.1560 mL 0.7801 mL 1.5601 mL 3.9003 mL
    40 mM 0.1170 mL 0.5850 mL 1.1701 mL 2.9252 mL

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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    • 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:
    Baclofen
    Cat. No.:
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