CGP 54626 hydrochloride

Potent, selective GABAB antagonist CAS# 149184-21-4

CGP 54626 hydrochloride

Catalog No. BCC6934----Order now to get a substantial discount!

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Quality Control of CGP 54626 hydrochloride

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Chemical structure

CGP 54626 hydrochloride

3D structure

Chemical Properties of CGP 54626 hydrochloride

Cas No. 149184-21-4 SDF Download SDF
PubChem ID 197583 Appearance Powder
Formula C18H29Cl3NO3P M.Wt 444.76
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 50 mM in DMSO and to 10 mM in ethanol with gentle warming
Chemical Name cyclohexylmethyl-[(2S)-3-[[(1S)-1-(3,4-dichlorophenyl)ethyl]amino]-2-hydroxypropyl]phosphinic acid;hydrochloride
SMILES CC(C1=CC(=C(C=C1)Cl)Cl)NCC(CP(=O)(CC2CCCCC2)O)O.Cl
Standard InChIKey ZQCFHOVIXCJPLE-LINSIKMZSA-N
Standard InChI InChI=1S/C18H28Cl2NO3P.ClH/c1-13(15-7-8-17(19)18(20)9-15)21-10-16(22)12-25(23,24)11-14-5-3-2-4-6-14;/h7-9,13-14,16,21-22H,2-6,10-12H2,1H3,(H,23,24);1H/t13-,16-;/m0./s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of CGP 54626 hydrochloride

DescriptionA potent, selective GABAB receptor antagonist (IC50 = 4 nM).

CGP 54626 hydrochloride Dilution Calculator

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CGP 54626 hydrochloride Molarity Calculator

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Preparing Stock Solutions of CGP 54626 hydrochloride

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.2484 mL 11.242 mL 22.484 mL 44.9681 mL 56.2101 mL
5 mM 0.4497 mL 2.2484 mL 4.4968 mL 8.9936 mL 11.242 mL
10 mM 0.2248 mL 1.1242 mL 2.2484 mL 4.4968 mL 5.621 mL
50 mM 0.045 mL 0.2248 mL 0.4497 mL 0.8994 mL 1.1242 mL
100 mM 0.0225 mL 0.1124 mL 0.2248 mL 0.4497 mL 0.5621 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on CGP 54626 hydrochloride

Antinociception produced by systemic R(+)-baclofen hydrochloride is attenuated by CGP 35348 administered to the spinal cord or ventromedial medulla of rats.[Pubmed:8773775]

Brain Res. 1996 Apr 29;718(1-2):129-37.

This study examined the sites in the central nervous system at which subcutaneously-administered R(+)-baclofen hydrochloride (baclofen), the most active isomer of this prototypic gamma-aminobutyric acid (GABA)B receptor agonist, acts to produce antinociception in the rat. To determine whether baclofen acts in the spinal cord, either saline or the GABAB receptor antagonist CGP 35348 was injected intrathecally in rats pretreated 24 min earlier with 1 or 3 mg/kg s.c. baclofen. Intrathecal (i.t.) injection of 3 or 10 micrograms of CGP 35348 antagonized the increase in tail-flick and hot-plate latency produced by either dose of baclofen. To determine whether baclofen acts at sites in the ventromedial medulla (VMM), either saline or CGP 35348 was microinjected in the nucleus raphe magnus or nucleus reticularis gigantocellularis pars alpha of rats pretreated 24 min earlier with 1 or 3 mg/kg s.c. baclofen. Microinjection of 0.5 or 3 micrograms of CGP 35348 at sites in the VMM produced at best only a very modest attenuation of the antinociceptive effects of baclofen. These data suggest that systemically-administered baclofen acts at sites in both the spinal cord and the VMM, but that its antinociceptive effects are likely to be mediated to a greater extent by a spinal, rather than medullary site of action. However, a definitive comparison of the relative contribution of GABAB receptors in these two regions is precluded by differences in the diffusion and concentrations of the antagonist in the spinal cord and brainstem. Finally, microinjection of 0.5 or 3.0 micrograms of CGP 35348 in the nucleus raphe magnus or nucleus reticularis gigantocellularis pars alpha of saline-pretreated rats did not alter tail-flick or hot-plate latency. This finding suggests that, unlike GABAA receptors, GABAB receptors do not mediate the tonic GABAergic input to neurons in these nuclei.

GABA(B)-receptor subtypes assemble into functional heteromeric complexes.[Pubmed:9872317]

Nature. 1998 Dec 17;396(6712):683-7.

B-type receptors for the neurotransmitter GABA (gamma-aminobutyric acid) inhibit neuronal activity through G-protein-coupled second-messenger systems, which regulate the release of neurotransmitters and the activity of ion channels and adenylyl cyclase. Physiological and biochemical studies show that there are differences in drug efficiencies at different GABA(B) receptors, so it is expected that GABA(B)-receptor (GABA(B)R) subtypes exist. Two GABA(B)-receptor splice variants have been cloned (GABA(B)R1a and GABA(B)R1b), but native GABA(B) receptors and recombinant receptors showed unexplained differences in agonist-binding potencies. Moreover, the activation of presumed effector ion channels in heterologous cells expressing the recombinant receptors proved difficult. Here we describe a new GABA(B) receptor subtype, GABA(B)R2, which does not bind available GABA(B) antagonists with measurable potency. GABA(B)R1a, GABA(B)R1b and GABA(B)R2 alone do not activate Kir3-type potassium channels efficiently, but co-expression of these receptors yields a robust coupling to activation of Kir3 channels. We provide evidence for the assembly of heteromeric GABA(B) receptors in vivo and show that GABA(B)R2 and GABA(B)R1a/b proteins immunoprecipitate and localize together at dendritic spines. The heteromeric receptor complexes exhibit a significant increase in agonist- and partial-agonist-binding potencies as compared with individual receptors and probably represent the predominant native GABA(B) receptor. Heteromeric assembly among G-protein-coupled receptors has not, to our knowledge, been described before.

The action of new potent GABAB receptor antagonists in the hemisected spinal cord preparation of the rat.[Pubmed:8390938]

Eur J Pharmacol. 1993 Apr 22;235(1):153-5.

CGP 52432 (3-N-(3,4-dichlorobenzyl)aminopropyl-P-diethoxymethylphosphinic acid), CGP 54062 (3-N[1-(R,S)-(3,4-dichlorophenyl)ethyl]amino-2-(S)-hydroxypropyl-P-benzy l- phosphinic acid), CGP 54626 (3-N[[1-(S)-(3,4-dichlorophenyl)ethyl]amino-2-(S)- hydroxypropyl-P-cyclohexylmethylphosphinic acid) and CGP 55845 (3-N[1-(S)-(3,4-dichlorophenyl)ethyl]amino-2-(S)- hydroxypropyl-P-benzyl-phosphinic acid) are novel selective GABAB receptor antagonist. The apparent Kd values for the complex formed between the GABAB receptor and these compounds were determined using the monosynaptic reflex in the hemisected rat spinal cord preparation in vitro. CGP 55845 was found to be the most potent GABAB receptor antagonist tested (apparent Kd = 30 nM). On the same preparation 0.3 microM CGP 55845 was equipotent with 100 microM of CGP 35348 (P-(3-aminopropyl)-P-diethoxymethyl-phosphinic acid) for reversal of the depressant action of (R)-(-)-baclofen.

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