LY 393558

Pricing Availability   Qty
Cat.No. 3350 - LY 393558 | C26H31FN4O4S2 | CAS No. 271780-64-4
Description: Dual 5-HT1B and 5-HT1D antagonist; also 5-HT re-uptake inhibitor
Chemical Name: 1-[2-[4-(6-Fluoro-1H-indol-3-yl)-3,6-dihydro-1(2H)-pyridinyl]ethyl]-3,4-dihydro-3-(1-methylethyl)-6-(methylsulfonyl)-1H-2,1,3-benzothiadiazine-2,2-dioxide
Purity: ≥97% (HPLC)
Literature (4)

Biological Activity

Dual 5-HT1B/1D receptor antagonist (pKB values are 9.05 and 8.98 respectively) and 5-HT re-uptake inhibitor (pIC50 = 8.48). Potently antagonizes terminal autoreceptor activity in vitro and increases extracellular 5-HT levels above those evoked by fluoxetine (Cat. No. 0927) in vivo. Also acts as an antagonist at 5-HT2A and 5-HT2B receptors (pKi values are 7.29 and 7.35 respectively).

Technical Data

M. Wt 546.68
Formula C26H31FN4O4S2
Storage Store at -20°C
Purity ≥97% (HPLC)
CAS Number 271780-64-4
PubChem ID 10347428
Smiles CC(C)N2S(N(CCN3CC=C(C4=CNC5=C4C=CC(F)=C5)CC3)C1=CC=C(S(=O)(C)=O)C=C1C2)(=O)=O

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

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 54.67 100

Preparing Stock Solutions

The following data is based on the product molecular weight 546.68. 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 1.83 mL 9.15 mL 18.29 mL
5 mM 0.37 mL 1.83 mL 3.66 mL
10 mM 0.18 mL 0.91 mL 1.83 mL
50 mM 0.04 mL 0.18 mL 0.37 mL

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

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

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.


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

Mitchell et al (2001) LY393558, a 5-hydroxytryptamine reuptake inhibitor and 5-HT1B/1D receptor antagonist: effects on extracellular levels of 5-hydroxytryptamine in the guinea pig and rat. Eur.J.Pharmacol. 432 19 PMID: 11734183

Pullar et al (2001) In vitro activity of LY393558, an inhibitor of the 5-hydroxytryptamine transporter with 5-HT1B/1D/2 receptor antagonist properties. Eur.J.Pharmacol. 432 9 PMID: 11734182

Morecroft et al (2005) Functional interactions between 5-hydroxytryptamine receptors and the serotonin transporter in pulmonary arteries. J.Pharmacol.Exp.Ther. 313 539 PMID: 15659538

If you know of a relevant reference for LY 393558, please let us know.

View Related Products by Product Action

View all 5-HT1B Receptor Antagonists

Keywords: LY 393558, LY 393558 supplier, LY393558, dual, 5-HT1B, 5-HT1D, 5-HT1B/1D, receptors, antagonists, serotonin, reuptake, uptake, SERT, inhibitors, inhibits, transporters, 5-HT1, 5-Hydroxytryptamine, Receptors, 5-HT, Transporters, 3350, Tocris Bioscience

Citations for LY 393558

Citations are publications that use Tocris products.

Currently there are no citations for LY 393558. Do you know of a great paper that uses LY 393558 from Tocris? Please let us know.

Reviews for LY 393558

There are currently no reviews for this product. Be the first to review LY 393558 and earn rewards!

Have you used LY 393558?

Submit a review and receive an Amazon gift card.

$50/€35/£30/$50CAN/¥300 Yuan/¥5000 Yen for first to review with an image

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review

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.


GPCR Product Listing

A collection of over 450 products for G protein-coupled receptors, the listing includes research tools for the study of:

  • Rhodopsin-like Receptors
  • Glutamate Receptors
  • Frizzled Receptors
  • GPCR Signaling
5-HT Receptors

5-HT Receptors Scientific Review

Written by Nicholas M. Barnes and John F. Neumaier, this review summarizes the various serotonin receptor subtypes and their importance in mediating the role of serotonin in numerous physiological and pharmacological processes. Compounds available from Tocris are listed.


Cardiovascular Poster

Cardiovascular disease remains one of the major causes of morbidity and mortality in the Western world and therefore this therapeutic area continues to be of great interest to researchers. This poster highlights the key GPCRs regulating vascular reactivity.


Parkinson's Poster

Parkinson's disease (PD) causes chronic disability and is the second most common neurodegenerative condition. This poster outlines the neurobiology of the disease, as well as highlighting current therapeutic treatments for symptomatic PD, and emerging therapeutic strategies to delay PD onset and progression.