Tropanyl 2-phenylthiobutanoate oxalate

Discontinued Product

Unfortunately Tropanyl 2-phenylthiobutanoate oxalate (Cat. No. 0739) has been withdrawn from sale for commercial reasons.
Cat.No. 0739 - Tropanyl 2-phenylthiobutanoate oxalate
Description: Presynaptic cholinergic modulator
Alternative Names: SM32

Biological Activity

Potent analgesic and nootropic agent. Causes increased release of acetylcholine at central muscarinic synapses.

Technical Data

M. Wt 409.5
Storage Desiccate at +4°C

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

All Tocris products are intended for laboratory research use only.

Preparing Stock Solutions

The following data is based on the product molecular weight 409.5. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.44 mL 12.21 mL 24.42 mL
5 mM 0.49 mL 2.44 mL 4.88 mL
10 mM 0.24 mL 1.22 mL 2.44 mL
50 mM 0.05 mL 0.24 mL 0.49 mL

Molarity Calculator

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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

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Product Datasheets

Certificate of Analysis is currently unavailable on-line.
Please contact Customer Service.
Safety Datasheet


References are publications that support the products' biological activity.

Gualtieri et al (1994) Presynaptic cholinergic modulators as potent cognition enhancers and analgesic drugs. 2. 2-Phenoxy-, 2-(phenylthio)- and 2-(phenylamino)alkanoic acid esters. J.Med.Chem. 37 1712 PMID: 8201606

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View all Other Acetylcholine Modulators

Keywords: Tropanyl 2-phenylthiobutanoate oxalate, supplier, SM32, Other, Acetylcholine, Non-selective, Muscarinics, Other, Acetylcholine, Tocris Bioscience

Citations for Tropanyl 2-phenylthiobutanoate oxalate

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Currently there are no citations for Tropanyl 2-phenylthiobutanoate oxalate.

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Literature in this Area

Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* or download your copy today!

*Please note that Tocris will only send literature to established scientific business / institute addresses.


Pain Research Product Guide

A collection of over 250 products for pain research, the guide includes research tools for the study of:

  • Nociception
  • Ion Channels
  • G-Protein-Coupled Receptors
  • Intracellular Signaling
Nicotinic ACh Receptors

Nicotinic ACh Receptors Scientific Review

Updated in 2014, this review by Sue Wonnacott summarizes the diverse structure and function of nicotinic acetylcholine receptors and gives an in-depth review of the ligands available for nAChR research. Compounds available from Tocris are listed.


Pain Poster

Peripheral sensitization is the reduction in the threshold of excitability of sensory neurons that results in an augmented response to a given external stimulus. This poster outlines the excitatory and inhibitory signaling pathways involved in modulation of peripheral sensitization. The role of ion channels, GPCRs, neurotrophins, and cytokines in sensory neurons are also described.