PB 28 dihydrochloride

Pricing Availability   Qty
Description: High affinity σ2 agonist
Chemical Name: 1-Cyclohexyl-4-[3-(1,2,3,4-tetrahydro-5-methoxy-1-naphthalenyl)propyl]piperazine dihydrochloride
Purity: ≥99% (HPLC)
Citations (1)
Reviews (1)

Biological Activity for PB 28 dihydrochloride

PB 28 dihydrochloride is a high affinity σ2 receptor agonist (Ki values are 0.8 and 15.2 nM for σ2 and σ1 receptors respectively) that displays minimal affinity at other receptors. Inhibits electrically evoked twitch in guinea pig bladder and ileum (EC50 values are 2.62 and 3.96 μM respectively). Displays antiproliferative and cytotoxic effects in SK-N-SH neuroblastoma and C6 glioma cells.

Technical Data for PB 28 dihydrochloride

M. Wt 443.5
Formula C24H38N2O.2HCl
Storage Desiccate at +4°C
Purity ≥99% (HPLC)
CAS Number 172907-03-8
PubChem ID 46861545

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 PB 28 dihydrochloride

Solvent Max Conc. mg/mL Max Conc. mM
water 8.87 20 with gentle warming

Preparing Stock Solutions for PB 28 dihydrochloride

The following data is based on the product molecular weight 443.5. 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
0.2 mM 11.27 mL 56.37 mL 112.74 mL
1 mM 2.25 mL 11.27 mL 22.55 mL
2 mM 1.13 mL 5.64 mL 11.27 mL
10 mM 0.23 mL 1.13 mL 2.25 mL

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Product Datasheets for PB 28 dihydrochloride

References for PB 28 dihydrochloride

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

Berardi et al (1996) New σ and 5-HT1A receptor ligands: ω-(tetralin-1-yl)-n-alkylamine derivatives. J.Med.Chem. 39 176 PMID: 8568804

Colabufo et al (2003) A new method for evaluating σ2 ligand activity in the isolated guinea-pig bladder. Naunyn-Schmied.Arch.Pharmacol. 368 106

Colabufo et al (2004) Antiproliferative and cytotoxic effects of some σ2 agonists and σ1 antagonists in tumour cell lines. Naunyn-Schmied.Arch.Pharmacol. 370 106

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1 Citation for PB 28 dihydrochloride

Citations are publications that use Tocris products. Selected citations for PB 28 dihydrochloride include:

Rennekamp et al (2016) σ1 receptor ligands control a switch between passive and active threat responses. Nat Chem Biol 12 552 PMID: 27239788

Do you know of a great paper that uses PB 28 dihydrochloride from Tocris? Please let us know.

Reviews for PB 28 dihydrochloride

Average Rating: 4 (Based on 1 Review.)

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Dual effect of Sigma-2 receptor ligand PB28 on viability of 661W cells..
By Timur Mavlyutov on 02/04/2018
Assay Type: In Vitro
Species: Mouse
Cell Line/Tissue: 661W

Cell viability MTT assay. Sigma-2 receptor ligand PB28 at low concentration (1-10uM) promotes cellular viability in the presence of toxin paraquat, while high concentration (100uM) kills cells.

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