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Cat.No. 1655 - O-2050 | C23H31NO4S | CAS No. 1883545-42-3
Description: Putative CB1 antagonist; displays mixed activity at CB receptors
Chemical Name: (6aR,10aR)-1-Hydroxy-3-(1-Methanesulfonylamino-4-hexyn-6-yl)-6a,7,10,10a-tetrahydro-6,6,9-trimethyl-6H-dibenzo[b,d]pyran
Purity: ≥97% (HPLC)
Citations (8)
Literature (6)

Biological Activity for O-2050

O-2050 is an originally defined as a high affinity cannabinoid CB1 receptor silent antagonist. Acts as a partial agonist in inhibiting forksolin-induced cyclic AMP stimulation (EC50 = 40.4 nM). Decreases food intake and stimulates locomotor activity in rodents. Antagonizes effects of CP55,940 (Cat. No. 0949) in vitro.

Licensing Information

Sold under license from VCU-IPF

Technical Data for O-2050

M. Wt 417.56
Formula C23H31NO4S
Storage Store at -80°C
Purity ≥97% (HPLC)
CAS Number 1883545-42-3
PubChem ID 16102146
Smiles OC1=CC(CC#CCCCNS(=O)(C)=O)=CC3=[C@@]1[C@@H]2CC(C)=CC[C@H]2[C@@](C)(C)O3

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for O-2050

Solvent Max Conc. mg/mL Max Conc. mM
ethanol 41.76 100
DMSO 41.76 100

Preparing Stock Solutions for O-2050

The following data is based on the product molecular weight 417.56. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.39 mL 11.97 mL 23.95 mL
5 mM 0.48 mL 2.39 mL 4.79 mL
10 mM 0.24 mL 1.2 mL 2.39 mL
50 mM 0.05 mL 0.24 mL 0.48 mL

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Product Datasheets for O-2050

Certificate of Analysis / Product Datasheet
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References for O-2050

References are publications that support the biological activity of the product.

Gardner and Mallet (2006) Suppression of feeding, drinking, and locomotion by a putative cannabinoid receptor 'silent antagonist.' Eur.J.Pharmacol. 530 103 PMID: 16380113

Martin et al (2002) Agonists and silent antagonists in a series of cannabinoid sulfonamides. Symposium on the Cannabinoids, International Canna

Wiley et al (2011) Structural and pharmacological analysis of O-2050, a putative neutral cannabinoid CB1 receptor antagonist. Eur.J.Pharmacol. 651 96 PMID: 21114999

If you know of a relevant reference for O-2050, please let us know.

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Keywords: O-2050, O-2050 supplier, CB1, silent, antagonists, cannabinoids, receptors, cb1r, receptor, Receptors, 1655, Tocris Bioscience

8 Citations for O-2050

Citations are publications that use Tocris products. Selected citations for O-2050 include:

Prather et al (2013) CB1 and CB2 receptors are novel molecular targets for tamox. and 4OH-Tamoxifen. Biochem Biophys Res Commun 441 339 PMID: 24148245

Malenczyk et al (2013) CB1 cannabinoid receptors couple to focal adhesion kinase to control Ins release. J Biol Chem 288 32685 PMID: 24089517

Alpár et al (2014) Endocannabinoids modulate cortical development by configuring Slit2/Robo1 signalling. BMC Ophthalmol 5 4421 PMID: 25030704

Brents et al (2011) Phase I hydroxylated metabolites of the K2 synthetic cannabinoid JWH-018 retain in vitro and in vivo cannabinoid 1 receptor affinity and activity. PLoS One 6 e21917 PMID: 21755008

Do you know of a great paper that uses O-2050 from Tocris? Please let us know.

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Literature in this Area

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