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Lazabemide (Ro 19-6327) (Synonyms: Ro 19-6327/000)

Catalog No.GC30979

Lazabemide (Ro 19-6327) (Ro 19-6327) is a selective, reversible inhibitor of monoamine oxidase B (MAO-B) (IC50=0.03 μM) but less active for MAO-A (IC50>100 μM).

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Lazabemide (Ro 19-6327) Chemical Structure

Cas No.: 103878-84-8

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10mM (in 1mL DMSO)
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10mg
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50mg
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Sample solution is provided at 25 µL, 10mM.

Product Documents

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Background

Lazabemide(Ro 19-6327) is selective, reversible monoamine oxidase B (MAO-B) inhibitor (IC50 values are 0.03 and > 100 μM for MAO-B and MAO-A respectively).

The in vitro binding characteristics of both radiolabeled inhibitors revealed them to be selective, high-affinity ligands for the respective enzymes. KD and Bmax values for 3H-Ro 41-1049 in rat cerebral cortex were 10.7 nM and 7.38 pmol/mg protein, respectively, and for 3H-Ro 19-6327 were 18.4 nM and 3.45 pmol/mg protein, respectively[1]. The IC50 values for lazabemide and Ro 16-6491, respectively, were: 86 microM and 90 microM for NA uptake; 123 microM and 90 microM for 5HT uptake; > 500 microM and > 1000 microM for DA uptake. Lazabemide and Ro 16-6491 also differed from L-deprenyl in their ability to induce release of endogenous monoamines from synaptosomes. Thus, Lazabemide(Ro 19-6327) (500 microM) induced a greater 5 HT release than did L-deprenyl, but was less effective than L-deprenyl in releasing DA. On the contrary, lazabemide was almost completely inactive on either 5 HT and DA release[2]. a clear inhibition of DOPAC formation was observed with Lazabemide(Ro 19-6327) (250 nM), while 250 nM lazabemide was found not to increase the accumulation of newly-formed DA in those tubular epithelial cells loaded with 50 microM L-DOPA[3].

The ischemia reperfusion-induced hydroxyl radical generation was attenuated by 3 mg/kg of clorgyline and lazabemide. Furthermore, mice pretreated with these MAO inhibitors showed decreased DOPAC levels in comparison with those of their respective vehicle-treated control groups; recovery of the reduced DOPAC level was also delayed[4].

[1]. Saura J, et al. Quantitative enzyme radioautography with 3H-Ro 41-1049 and 3H-Ro 19-6327 in vitro: localization and abundance of MAO-A and MAO-B in rat CNS, peripheral organs, and human brain. J Neurosci. 1992 May;12(5):1977-99. [2]. Bondiolotti GP, et al. In vitro effects on monoamine uptake and release by the reversible monoamine oxidase-B inhibitors lazabemide and N-(2-aminoethyl)-p-chlorobenzamide: a comparison with L-deprenyl. Biochem Pharmacol. 1995 Jun 29;50(1):97-102. [3]. Guimaraes J, et al. The activity of MAO A and B in rat renal cells and tubules. Life Sci. 1998;62(8):727-37. [4]. Suzuki T, et al. MAO inhibitors, clorgyline and lazabemide, prevent hydroxyl radical generation caused by brain ischemia/reperfusion in mice. Pharmacology. 1995 Jun;50(6):357-62.

Chemical Properties

Cas No. 103878-84-8 SDF
Synonyms Ro 19-6327/000
Canonical SMILES ClC1=CC=C(C(NCCN)=O)N=C1
Formula C8H10ClN3O M.Wt 199.64
Solubility DMSO : ≥ 34 mg/mL (170.31 mM) Storage Store at -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table

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1 mg 5 mg 10 mg
1 mM 5.009 mL 25.0451 mL 50.0902 mL
5 mM 1.0018 mL 5.009 mL 10.018 mL
10 mM 0.5009 mL 2.5045 mL 5.009 mL
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