Lazabemide hydrochloride

Modify Date: 2024-01-10 17:38:06

Lazabemide hydrochloride Structure
Lazabemide hydrochloride structure
Common Name Lazabemide hydrochloride
CAS Number 103878-83-7 Molecular Weight 236.09800
Density N/A Boiling Point 397.4ºC at 760mmHg
Molecular Formula C8H11Cl2N3O Melting Point N/A
MSDS N/A Flash Point 194.2ºC

 Use of Lazabemide hydrochloride


Lazabemide hydrochloride (Ro 19-6327 hydrochloride) is a selective, reversible inhibitor of monoamine oxidase B (MAO-B) (IC50=0.03 μM) but less active for MAO-A (IC50>100 μM). Lazabemide  inhibits monoamine uptake at high concentrations, the IC50 values are 86 μM, 123 μM and >500 μM for noradrenalin, serotonin and dopamine uptake, respectively. Lazabemide can be used for the research of parkinson and alzheimer′s disease[1].

 Names

Name N-(2-aminoethyl)-5-chloropyridine-2-carboxamide,hydrochloride
Synonym More Synonyms

 Lazabemide hydrochloride Biological Activity

Description Lazabemide hydrochloride (Ro 19-6327 hydrochloride) is a selective, reversible inhibitor of monoamine oxidase B (MAO-B) (IC50=0.03 μM) but less active for MAO-A (IC50>100 μM). Lazabemide  inhibits monoamine uptake at high concentrations, the IC50 values are 86 μM, 123 μM and >500 μM for noradrenalin, serotonin and dopamine uptake, respectively. Lazabemide can be used for the research of parkinson and alzheimer′s disease[1].
Related Catalog
Target

MAO-B:0.4 nM (IC50)

In Vitro 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 19-6327 in rat cerebral cortex are 18.4 nM and 3.45 pmol/mg protein, respectively[1]. The IC50 values for lazabemide are: 86 μM for NA uptake; 123 μM for 5HT uptake; > 500 μM for DA uptake, respectively[1]. . Lazabemide (5 μM) inhibits human MAO-B and MAO-A with IC50 of 6.9 nM and >10 nM, respectively. And it inhibits rat MAO-B and MAO-A with IC50of 37 nM and >10 μM, respectively ina enzymatic assay[2]. Lazabemide differs from L-deprenyl in their ability to induce release of endogenous monoamines from synaptosomes. Thus, Lazabemide (500 μM) induces a greater 5 HT release than does L-deprenyl, but is less effective than L-deprenyl in releasing DA. On the contrary, lazabemide was almost completely inactive on either 5 HT and DA release[2]. Lazabemide (250 nM) results in a clear inhibition of DOPAC formation, while does not increase the accumulation of newly-formed DA in those tubular epithelial cells loaded with 50 microM L-DOPA[3].
In Vivo Lazabemide (3 mg/kg) attenuates ichemia reperfusion-induced hydroxyl radical generation and pretreatment with Lazabemide showed decreased DOPAC levels in comparison with those of their respective vehicle-treated control groups[4].
References

[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 & Physical Properties

Boiling Point 397.4ºC at 760mmHg
Molecular Formula C8H11Cl2N3O
Molecular Weight 236.09800
Flash Point 194.2ºC
Exact Mass 235.02800
PSA 68.01000
LogP 2.31670
Vapour Pressure 1.59E-06mmHg at 25°C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
US4551100
CHEMICAL NAME :
2-Pyridinecarboxamide, N-(2-aminoethyl)-5-chloro-, hydrochloride
CAS REGISTRY NUMBER :
103878-83-7
LAST UPDATED :
199509
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C8-H10-Cl-N3-O.Cl-H
MOLECULAR WEIGHT :
236.12

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
30 gm/kg
SEX/DURATION :
male 9 week(s) pre-mating female 2 week(s) pre-mating - 3 week(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
REFERENCE :
YACHDS Yakuri to Chiryo. Pharmacology and Therapeutics. (Raifu Saiensu Shuppan K.K., 2-5-13, Yaesu, Chuo-ku, Tokyo 104, Japan) V.1- 1972- Volume(issue)/page/year: 22(suppl 11),S2785,199

 Safety Information

Hazard Codes Xi

 Synonyms

Lazabemide hydrochloride
Ro 19-6327/001
Huwentoxin IV
Tempium
Lazabemide monohydrochloride
Lazabemide HCl
Ro 19-6327