O-1602

Potent GPR55 receptor agonist CAS# 317321-41-8

O-1602

Catalog No. BCC7487----Order now to get a substantial discount!

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Chemical structure

O-1602

3D structure

Chemical Properties of O-1602

Cas No. 317321-41-8 SDF Download SDF
PubChem ID 45073499 Appearance Powder
Formula C17H22O2 M.Wt 258.36
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble in methyl acetate (supplied pre-dissolved -10mg/ml)
Chemical Name 5-methyl-4-[(1R,6R)-3-methyl-6-prop-1-en-2-ylcyclohex-2-en-1-yl]benzene-1,3-diol
SMILES CC1=CC(C(CC1)C(=C)C)C2=C(C=C(C=C2C)O)O
Standard InChIKey KDZOUSULXZNDJH-LSDHHAIUSA-N
Standard InChI InChI=1S/C17H22O2/c1-10(2)14-6-5-11(3)7-15(14)17-12(4)8-13(18)9-16(17)19/h7-9,14-15,18-19H,1,5-6H2,2-4H3/t14-,15+/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 O-1602

DescriptionAnalog of cannabidiol that is a potent agonist at the GPR55 cannabinoid receptor (EC50 values are 13, > 30000 and > 30000 nM for GPR55, CB1 and CB2 receptors respectively). Induces activation of RhoA, cdc42 and rac1.

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Preparing Stock Solutions of O-1602

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.8706 mL 19.3528 mL 38.7057 mL 77.4114 mL 96.7642 mL
5 mM 0.7741 mL 3.8706 mL 7.7411 mL 15.4823 mL 19.3528 mL
10 mM 0.3871 mL 1.9353 mL 3.8706 mL 7.7411 mL 9.6764 mL
50 mM 0.0774 mL 0.3871 mL 0.7741 mL 1.5482 mL 1.9353 mL
100 mM 0.0387 mL 0.1935 mL 0.3871 mL 0.7741 mL 0.9676 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 O-1602

Mechanisms of vasorelaxation induced by the cannabidiol analogue compound O-1602 in the rat small mesenteric artery.[Pubmed:26297305]

Eur J Pharmacol. 2015 Oct 15;765:107-14.

Atypical cannabinoid O-1602 (5-Methyl-4-[(1R,6R)-3-methyl-6-(1-cyclohexen-1-yl]-1,3-benzenediol) induces vasorelaxation and activates the orphan G protein-coupled receptor GPR55 in human endothelial cells. This study investigates the underlying mechanisms of vasorelaxation induced by this compound. The vasodilator activity was assessed in the rat third order branch of the superior mesenteric artery using a wire myograph. The vasorelaxation was partially endothelium-dependent (pEC50%=5.8+/-0.3). The endothelial component was antagonized by the putative endothelial receptor antagonists rimonabant (3 microM; pEC50%=5.1+/-0.2) and O-1918 (10 microM; pEC50%=5.3+/-0.2) but not by the CB1 and CB2 receptors antagonists AM 251 (10 microM) and AM 630 (10 microM), respectively. The vasorelaxation was not pertussis toxin-sensitive and not mediated through TRPVI receptors or by the release of NO, but was reduced by inhibition of Ca2+ sensitive K+ channels (KCa). In endothelium-denuded vessels, O-1602 abolished CaCl2-induced contraction and the inhibition was apparently reversed by O-1918. O-1602 mediates its vasorelaxant effects partly by an endothelium-dependent pathway involving rimonabant- and O-1918-sensitive targets that are distinct from the classical CB1 and CB2 cannabinoid receptors and might involve activation of KCa. The endothelium-independent relaxation might involve interfering with Ca2+ entry.

A role for O-1602 and G protein-coupled receptor GPR55 in the control of colonic motility in mice.[Pubmed:23603203]

Neuropharmacology. 2013 Aug;71:255-63.

OBJECTIVE: The G protein-coupled receptor 55 (GPR55) is a novel cannabinoid (CB) receptor, whose role in the gastrointestinal (GI) tract remains unknown. Here we studied the significance of GPR55 in the regulation of GI motility. DESIGN: GPR55 mRNA and protein expression were measured by RT-PCR and immunohistochemistry. The effects of the GPR55 agonist O-1602 and a selective antagonist cannabidiol (CBD) were studied in vitro and in vivo and compared to a non-selective cannabinoid receptor agonist WIN55,212-2. CB1/2(-/-) and GPR55(-/-) mice were employed to identify the receptors involved. RESULTS: GPR55 was localized on myenteric neurons in mouse and human colon. O-1602 concentration-dependently reduced evoked contractions in muscle strips from the colon ( approximately 60%) and weakly ( approximately 25%) from the ileum. These effects were reversed by CBD, but not by CB1 or CB2 receptor antagonists. I.p. and i.c.v. injections of O-1602 slowed whole gut transit and colonic bead expulsion; these effects were absent in GPR55(-/-) mice. WIN55,212-2 slowed whole gut transit effects, which were counteracted in the presence of a CB1 antagonist AM251. WIN55,212-2, but not O-1602 delayed gastric emptying and small intestinal transit. Locomotion, as a marker for central sedation, was reduced following WIN55,212-2, but not O-1602 treatment. CONCLUSION: GPR55 is strongly expressed on myenteric neurons of the colon and it is selectively involved in the regulation of colonic motility. Since activation of GPR55 receptors is not associated with central sedation, the GPR55 receptor may serve as a future target for the treatment of colonic motility disorders.

O-1602, an atypical cannabinoid, inhibits tumor growth in colitis-associated colon cancer through multiple mechanisms.[Pubmed:22965195]

J Mol Med (Berl). 2013 Apr;91(4):449-58.

Cannabinoids have antiinflammatory and antitumorigenic properties. Some cannabinoids, such as O-1602, have no or only little affinity to classical cannabinoid receptors but exert cannabinoid-like antiinflammatory effects during experimental colitis. Here, we investigated whether O-1602 shows antitumorigenic effects in colon cancer cells and whether it could reduce tumorigenesis in the colon in vivo. The colon cancer cell lines HT-29 and SW480 were used to study the effect of O-1602 on viability and apoptosis. The effect of O-1602 on tumor growth in vivo was studied in a colitis-associated colon cancer mouse model. O-1602 decreased viability and induced apoptosis in colon cancer cells in a concentration-dependent manner (0.1-10 muM). In the mouse model, treatment with O-1602 (3 mg/kg, i.p., 12x) reduced tumor area by 50 % and tumor incidence by 30 %. Histological scoring revealed a significant decrease in tumor load. In tumor tissue, O-1602 decreased levels of proliferating cell nuclear antigen (PCNA), activation of oncogenic transcription factors STAT3 and NFkappaB p65, and expression of TNF-alpha while levels for proapoptotic markers, such as p53 and BAX, increased. The in vivo effects of O-1602 on PCNA, BAX, and p53 were also observed in colon cancer cells. The data provide a novel insight into antitumorigenic mechanisms of atypical cannabinoids. O-1602 exerts antitumorigenic effects by targeting colon cancer cells as well as proinflammatory pathways known to promote colitis-associated tumorigenesis. Due to its lack of central sedation, O-1602 could be an interesting compound for the treatment of colon and possibly other cancers.

The effect of O-1602, an atypical cannabinoid, on morphine-induced conditioned place preference and physical dependence.[Pubmed:26971034]

Pharmacol Rep. 2016 Jun;68(3):592-7.

BACKGROUND: Previous studies show that some non-CB1/non-CB2 effects of cannabinoids are mediated through G protein coupled receptor 55 (GPR55). As this receptor is activated by some of cannabinoid receptor ligands and is involved in the modulation of pain, it was hypothesized that this receptor may also interact with opioids. This study examined the effect of atypical cannabinoid O-1602 as a GPR55 agonist on morphine-induced conditioned place preference (CPP) and physical dependence. METHODS: We used a biased CPP model to evaluate the effect of O-1602 (0.2, 1 and 5mg/kg, intraperitoneal; ip) on the acquisition and expression of morphine-induced CPP in male mice. The locomotor activities of mice were also recorded. Moreover, repeated administration of morphine (50, 50 and 75mg/kg/day) for three days, induced physical dependence. The withdrawal signs such as jumps and diarrhea were precipitated by administration of naloxone (5mg/kg, ip). The effect of O-1602 on the development of morphine physical dependence was assessed by injection of O-1602 (0.2, 1 and 5mg/kg) before morphine administrations. RESULTS: Morphine (40mg/kg, subcutaneous; sc), but not O-1602 (5mg/kg) elicited significant preference in the post-conditioning phase. O-1602 at the doses of 0.2 and 1mg/kg, but not 5mg/kg reduced acquisition of morphine CPP with an increase in locomotor activity at the dose of 5mg/kg. O-1602 at the doses of 0.2, 1 and 5mg/kg also reduced expression of morphine CPP with an increase in locomotor activity at the dose of 5mg/kg. O-1602 had a significant inhibitory effect on development of morphine-induced physical dependence at the dose of 5mg/kg by decreasing jumps and diarrhea during withdrawal syndrome. CONCLUSIONS: The present results indicate that O-1602 decreased acquisition and expression of morphine CPP and inhibited development of morphine-induced physical dependence.

The novel endocannabinoid receptor GPR55 is activated by atypical cannabinoids but does not mediate their vasodilator effects.[Pubmed:17704827]

Br J Pharmacol. 2007 Nov;152(5):825-31.

BACKGROUND AND PURPOSE: Atypical cannabinoids are thought to cause vasodilatation through an as-yet unidentified 'CBx' receptor. Recent reports suggest GPR55 is an atypical cannabinoid receptor, making it a candidate for the vasodilator 'CBx' receptor. The purpose of the present study was to test the hypothesis that human recombinant GPR55 is activated by atypical cannabinoids and mediates vasodilator responses to these agents. EXPERIMENTAL APPROACH: Human recombinant GPR55 was expressed in HEK293T cells and specific GTPgammaS activity was monitored as an index of receptor activation. In GPR55-deficient and wild-type littermate control mice, in vivo blood pressure measurement and isolated resistance artery myography were used to determine GPR55 dependence of atypical cannabinoid-induced haemodynamic and vasodilator responses. KEY RESULTS: Atypical cannabinoids O-1602 and abnormal cannabidiol both stimulated GPR55-dependent GTPgammaS activity (EC50 approximately 2 nM), whereas the CB1 and CB2-selective agonist WIN 55,212-2 showed no effect in GPR55-expressing HEK293T cell membranes. Baseline mean arterial pressure and heart rate were not different between WT and GPR55 KO mice. The blood pressure-lowering response to abnormal cannabidiol was not different between WT and KO mice (WT 20+/-2%, KO 26+/-5% change from baseline), nor was the vasodilator response to abnormal cannabidiol in isolated mesenteric arteries (IC50 approximately 3 micro M for WT and KO). The abnormal cannabidiol vasodilator response was antagonized equivalently by O-1918 in both strains. CONCLUSIONS: These results demonstrate that while GPR55 is activated by atypical cannabinoids, it does not appear to mediate the vasodilator effects of these agents.

The orphan receptor GPR55 is a novel cannabinoid receptor.[Pubmed:17876302]

Br J Pharmacol. 2007 Dec;152(7):1092-101.

BACKGROUND: The endocannabinoid system functions through two well characterized receptor systems, the CB1 and CB2 receptors. Work by a number of groups in recent years has provided evidence that the system is more complicated and additional receptor types should exist to explain ligand activity in a number of physiological processes. EXPERIMENTAL APPROACH: Cells transfected with the human cDNA for GPR55 were tested for their ability to bind and to mediate GTPgammaS binding by cannabinoid ligands. Using an antibody and peptide blocking approach, the nature of the G-protein coupling was determined and further demonstrated by measuring activity of downstream signalling pathways. KEY RESULTS: We demonstrate that GPR55 binds to and is activated by the cannabinoid ligand CP55940. In addition endocannabinoids including anandamide and virodhamine activate GTPgammaS binding via GPR55 with nM potencies. Ligands such as cannabidiol and abnormal cannabidiol which exhibit no CB1 or CB2 activity and are believed to function at a novel cannabinoid receptor, also showed activity at GPR55. GPR55 couples to Galpha13 and can mediate activation of rhoA, cdc42 and rac1. CONCLUSIONS: These data suggest that GPR55 is a novel cannabinoid receptor, and its ligand profile with respect to CB1 and CB2 described here will permit delineation of its physiological function(s).

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