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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).

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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U Thomet et al.
European journal of pharmacology, 408(2), R1-R2 (2000-11-18)
GABA(C) receptors are expressed in the whole brain, but predominantly in the retina. They can be identified by their unique pharmacology. The establishment of the entire pharmacology is, however, quite tedious. We show here that loreclezole dose dependently inhibits ionic
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
D Ashton et al.
Epilepsy research, 11(1), 27-36 (1992-03-01)
In animal models of epilepsy the anticonvulsant profile of loreclezole resembles that of barbiturates and benzodiazepines. We examined whether the increase in seizure threshold to pentylenetetrazole infusion produced by 10 mg/kg of loreclezole, pentobarbital or diazepam could be reversed by
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
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
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