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JN0002

Sigma-Aldrich

Loreclezole

≥98% (HPLC)

Synonym(s):

1-[(1Z)-2-Chloro-2-(2,4-dichlorophenyl)ethenyl]-1H-1,2,4-triazole, 1-[(Z)-2-Chloro-2-(2,4-dichlorophenyl)vinyl]-1,2,4-triazole, R 72063, R-72063, R72063

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About This Item

Empirical Formula (Hill Notation):
C10H6Cl3N3
CAS Number:
117857-45-1
Molecular Weight:
274.53
MDL number:
MFCD00865331
UNSPSC Code:
12352202
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

room temp

SMILES string

Cl/C(C1=CC=C(Cl)C=C1Cl)=C\N2N=CN=C2

InChI

1S/C10H6Cl3N3/c11-7-1-2-8(9(12)3-7)10(13)4-16-6-14-5-15-16/h1-6H/b10-4-

InChI key

XGLHZTBDUXXHOM-WMZJFQQLSA-N

Biochem/physiol Actions

Loreclezole (R72063) is a sedative and anticonvulsant that exerts subtype-selective positive allosteric modulator (PAM) potency toward beta2 (β2)- or β3-containing GABAA gamma-aminobutyric acid (GABA) receptors (% potentiation by 1 μM Loreclezole of GABA EC20-stimulated current/human α1βγ2 = 100/α1β2γ2, 120/α1β3γ2, 13/α1β1γ2; α1β2γ2 EC50 = 1 μM) with >300-fold lower β1 affinity, while acting as a negative allosteric modulator (NAM) against the homomeric rho1 (ρ1) GABAA-rho receptor (rat GABAC IC50 = 0.5 μM against GABA EC10-induced current).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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P B Wingrove et al.
Proceedings of the National Academy of Sciences of the United States of America, 91(10), 4569-4573 (1994-05-10)
Type A gamma-aminobutyric acid (GABAA) receptors of the mammalian nervous system are a family of ligand-gated ion channels probably formed from the coassembly of different subunits (alpha 1-6, beta 1-3, gamma 1-3, delta) in the arrangement alpha beta gamma or
K A Wafford et al.
Neuron, 12(4), 775-782 (1994-04-01)
Cloning of cDNAs that code for GABAA receptor subunits has revealed multiple receptor populations constructed from different subunit combinations. On native rat and cloned human GABAA receptors, the anticonvulsant compound loreclezole strongly potentiated GABA-mediated chloride currents. Using different combinations of
James O Groves et al.
The European journal of neuroscience, 24(1), 167-174 (2006-08-03)
The majority of inhibitory neurotransmission in the brain is mediated by the gamma-aminobutyric acid (GABA) type A (GABA(A)) receptor. The anticonvulsant loreclezole largely acts by potentiating GABA(A) receptors containing beta2 and beta3 subunits. We used a genetically modified mouse containing
R B Raffa et al.
Naunyn-Schmiedeberg's archives of pharmacology, 342(5), 613-615 (1990-11-01)
Rats were injected intraperitoneally with loreclezole (R 72063), diazepam, or scopolamine 60 min prior to acquisition of a passive avoidance task and tested 18 h later for retention of the learned (passive) behavior. The known impairment of performance produced by
C L Zhang et al.
Naunyn-Schmiedeberg's archives of pharmacology, 346(5), 581-587 (1992-11-01)
Effects of loreclezole (R72063), a triazole derivative with anticonvulsant properties, were studied on field potentials in rat hippocampal slices and on different patterns of low Mg(2+)-induced epileptiform activity in combined entorhinal cortex-hippocampal slices. Lowering extracellular Mg2+ induced recurrent (10-60/min), short
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