| Size | Price | Stock | Qty |
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| 100mg |
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| Other Sizes |
| Targets |
MAO-B 0.4 nM (IC50)
Lazabemide hydrochloride selectively and reversibly targets the monoamine oxidase B (MAO-B) enzyme. It has a very low IC50 of 0.03 μM for MAO-B, demonstrating high potency. In contrast, it shows low activity against MAO-A with an IC50 > 100 μM, indicating its high selectivity for the B isoform. |
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| ln Vitro |
Both radiolabeled inhibitors were found to be selective, high-affinity ligands for their respective enzymes based on their in vitro binding properties. In the rat cerebral cortex, the KD and Bmax values for 3H-Ro 19-6327 are 18.4 nM and 3.45 pmol/mg protein, respectively [1]. Lazabemide's IC50 values are as follows: > 500 μM for DA uptake, 86 μM for NA uptake, and 123 μM for 5HT uptake[1]. ..Human MAO-B and MAO-A are inhibited by lazabemide (5 μM) with IC50 values of 6.9 nM and >10 nM, respectively. Additionally, in an enzymatic assay, it inhibits rat MAO-B and MAO-A with IC50 values of 37 nM and >10 μM, respectively[2]. cause synaptosomes to release endogenous monoamines. Therefore, compared to L-deprenyl, lazabemide (500 μM) causes a larger release of 5 HT, but it releases DA less efficiently. Conversely, on both 5 HT and DA release, lazabemide was essentially inert[2]. When tubular epithelial cells are treated with 50 microM L-DOPA, lazabemide (250 nM) clearly inhibits the production of DOPAC but does not increase the accumulation of newly-formed DA[3].
In vitro, Lazabemide hydrochloride is a potent MAO-B inhibitor with an IC50 of 0.03 μM. It exhibits low activity against MAO-A (IC50 > 100 μM). At high concentrations, it also inhibits monoamine uptake, with IC50 values of 86 μM for norepinephrine (NA) uptake and 123 μM for serotonin (5HT) uptake. The KD and Bmax values for [3H]-Ro 19-6327 binding in the rat cerebral cortex are 18.4 nM and 3.45 pmol/mg protein, respectively. |
| ln Vivo |
Lazabemide (3 mg/kg) reduces the production of hydroxyl radicals caused by ischemia reperfusion, and pretreatment with the drug resulted in lower DOPAC levels compared to the vehicle-treated control groups[4].
In vivo, Lazabemide hydrochloride (3 mg/kg) reduces the production of hydroxyl radicals caused by ischemia-reperfusion. Pretreatment with the drug resulted in lower DOPAC (a dopamine metabolite) levels compared to vehicle-treated control groups. This suggests it can modulate dopamine metabolism and oxidative stress in vivo, supporting its potential use in neurodegenerative disease research. |
| Enzyme Assay |
Non-cell-based assays for Lazabemide hydrochloride involve incubating the compound with MAO-B or MAO-A enzymes and a specific substrate. The enzymatic activity is measured, and the IC50 is determined. For example, human MAO-B is inhibited by lazabemide (5 μM) with an IC50 of 6.9 nM. Its selectivity is confirmed by testing against MAO-A, where its IC50 is >10 μM. Radioligand binding studies using [3H]-Ro 19-6327 can also be performed to determine KD and Bmax values.
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| Cell Assay |
For in vitro cellular assays, Lazabemide hydrochloride can be used to treat cells to study its effects on monoamine metabolism. For example, in tubular epithelial cells treated with L-DOPA, lazabemide (250 nM) clearly inhibits the production of DOPAC but does not increase the accumulation of newly-formed dopamine. This demonstrates its MAO-B inhibitory activity in a cellular context.
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| Animal Protocol |
In vivo animal studies with Lazabemide hydrochloride typically involve administration to rodents to assess its pharmacological effects. In an ischemia-reperfusion model, the compound (3 mg/kg) was shown to reduce hydroxyl radical production. Such studies help to evaluate its neuroprotective potential and its ability to modulate monoamine metabolism in the brain.
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| ADME/Pharmacokinetics |
Lazabemide hydrochloride has a molecular weight of 236.10 g/mol and a molecular formula of C8H11Cl2N3O. Its CAS number is 103878-83-7. It is typically a solid at room temperature. The compound is for research use only and should be stored according to the manufacturer's recommendations, typically at -20°C.
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| Toxicity/Toxicokinetics |
The toxicity profile of Lazabemide hydrochloride is not extensively detailed in the provided search results. As a selective MAO-B inhibitor, it is expected to have a more favorable side-effect profile than non-selective MAO inhibitors. However, it is a research chemical and should be handled with appropriate safety precautions. It is not for human use.
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| References | |
| Additional Infomation |
Lazabemide hydrochloride is a pyridinecarboxamide.
Lazabemide hydrochloride (CAS#: 103878-83-7) is a potent, selective, and reversible inhibitor of MAO-B. Its high selectivity makes it a key tool for studying the role of MAO-B in the brain and for developing therapies for neurodegenerative disorders like Parkinson's and Alzheimer's diseases. It is a pyridinecarboxamide compound that has been investigated for its neuroprotective properties. |
| Molecular Formula |
C8H11CL2N3O
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|---|---|
| Molecular Weight |
236.10
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| Exact Mass |
235.028
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| CAS # |
103878-83-7
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| Related CAS # |
Lazabemide;103878-84-8
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| PubChem CID |
163727
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| Appearance |
Typically exists as solid at room temperature
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| Boiling Point |
397.4ºC at 760mmHg
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| Flash Point |
194.2ºC
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| Vapour Pressure |
1.59E-06mmHg at 25°C
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| LogP |
2.316
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| Hydrogen Bond Donor Count |
3
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| Hydrogen Bond Acceptor Count |
3
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| Rotatable Bond Count |
3
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| Heavy Atom Count |
14
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| Complexity |
177
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| Defined Atom Stereocenter Count |
0
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| SMILES |
C1=CC(=NC=C1Cl)C(=O)NCCN.Cl
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| InChi Key |
JMFKTFLARGGXCC-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C8H10ClN3O.ClH/c9-6-1-2-7(12-5-6)8(13)11-4-3-10;/h1-2,5H,3-4,10H2,(H,11,13);1H
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| Chemical Name |
N-(2-aminoethyl)-5-chloropyridine-2-carboxamide;hydrochloride
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| HS Tariff Code |
2934.99.9001
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| 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)
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| Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 4.2355 mL | 21.1775 mL | 42.3549 mL | |
| 5 mM | 0.8471 mL | 4.2355 mL | 8.4710 mL | |
| 10 mM | 0.4235 mL | 2.1177 mL | 4.2355 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.
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.
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