1. Neuronal Signaling
  2. Monoamine Oxidase
  3. Ro 41-1049 hydrochloride

Ro 41-1049 hydrochloride is a reversible and selective inhibitor of monoamine oxidase-A (MAO-A). An homogeneous population of high affinity binding sites for [3H]Ro 41-1049 is found in membrane preparations from human frontal cortex and placenta (Kd values of 16.5 and 64.4 nM, respectively).

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Ro 41-1049 hydrochloride Chemical Structure

Ro 41-1049 hydrochloride Chemical Structure

CAS No. : 127917-66-2

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 55 In-stock
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10 mM * 1 mL in DMSO USD 55 In-stock
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10 mg USD 65 In-stock
50 mg USD 180 In-stock
100 mg USD 300 In-stock
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Description

Ro 41-1049 hydrochloride is a reversible and selective inhibitor of monoamine oxidase-A (MAO-A). An homogeneous population of high affinity binding sites for [3H]Ro 41-1049 is found in membrane preparations from human frontal cortex and placenta (Kd values of 16.5 and 64.4 nM, respectively)[1].

IC50 & Target

MAO-A[1]

In Vivo

Ro 41-1049 (1-50 mg/kg; intraperitoneal injection; for 3 hours; Sprague-Dawley rats) treatment inhibits dopamine metabolite formation and increases dopamine levels in a dose-dependent fashion. Pretreatment with Ro 41-1049 (20 mg/kg) significantly increases dopamine formation following L-dopa administration (100 mg/kg IP) while decreasing formation of 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA)[2].

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

Animal Model: Sprague-Dawley rats (200-240 g)[2]
Dosage: 1 mg/kg, 5 mg/kg, 10 mg/kg, 20 mg/kg, or 50 mg/kg
Administration: Intraperitoneal injection; for 3 hours
Result: Inhibited dopamine metabolite formation and increased dopamine levels in a dose-dependent fashion. Pretreatment with the concentration of 20 mg/kg significantly increased dopamine formation following L-dopa administration while decreasing formation of DOPAC and HVA.
Molecular Weight

301.77

Formula

C12H13ClFN3OS

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=C(C2=CC=CC(F)=C2)SC=N1)NCCN.[H]Cl

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 32 mg/mL (106.04 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 25 mg/mL (82.84 mM; Need ultrasonic)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.3138 mL 16.5689 mL 33.1378 mL
5 mM 0.6628 mL 3.3138 mL 6.6276 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 (sealed storage, away from moisture). 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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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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: ≥ 2.5 mg/mL (8.28 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (8.28 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.

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: 20 mg/mL (66.28 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

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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
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, 6 months; -20°C, 1 month (sealed storage, away from moisture). 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 1 mM 3.3138 mL 16.5689 mL 33.1378 mL 82.8446 mL
5 mM 0.6628 mL 3.3138 mL 6.6276 mL 16.5689 mL
10 mM 0.3314 mL 1.6569 mL 3.3138 mL 8.2845 mL
15 mM 0.2209 mL 1.1046 mL 2.2092 mL 5.5230 mL
20 mM 0.1657 mL 0.8284 mL 1.6569 mL 4.1422 mL
25 mM 0.1326 mL 0.6628 mL 1.3255 mL 3.3138 mL
30 mM 0.1105 mL 0.5523 mL 1.1046 mL 2.7615 mL
40 mM 0.0828 mL 0.4142 mL 0.8284 mL 2.0711 mL
50 mM 0.0663 mL 0.3314 mL 0.6628 mL 1.6569 mL
60 mM 0.0552 mL 0.2761 mL 0.5523 mL 1.3807 mL
80 mM 0.0414 mL 0.2071 mL 0.4142 mL 1.0356 mL
DMSO 100 mM 0.0331 mL 0.1657 mL 0.3314 mL 0.8284 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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    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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Ro 41-1049 hydrochloride
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