SR-31747 free base

Cat. No.: HY-13751A: FAQs
Data Sheet SDS COA Handling Instructions

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SR-31747 free base is a sigma ligand with immunosuppressive and anti-inflammatory properties. SR-31747 blocks cell proliferation by inhibiting sterol isomerase.

For research use only. We do not sell to patients.

SR-31747 free base Chemical Structure

CAS No. : 132173-06-9

Size	Price	Stock
5 mg	USD 350	Ask For Quote & Lead Time
10 mg	USD 550	Ask For Quote & Lead Time
25 mg	USD 990	Ask For Quote & Lead Time
50 mg	USD 1650	Ask For Quote & Lead Time

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This product is a controlled substance and not for sale in your territory.

Other Forms of SR-31747 free base:

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Biological Activity
Protocol
Purity & Documentation
References
Customer Review

Description

SR-31747 free base is a sigma ligand with immunosuppressive and anti-inflammatory properties. SR-31747 blocks cell proliferation by inhibiting sterol isomerase^[1]^[2].

IC₅₀ & Target

Sigma ligand^[1]

In Vitro

SR-31747 blocks the proliferation of lymphocytes at a concentration of 10 nM. SR-31747 is capable of inhibiting T-cell proliferation when added as late as 24 h after activation. SR-31747 arrests proliferation in yeast cells in a dose-dependent manner^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

In vivo, SR-31747 dramatically blocks lipopolysaccharide-induced production of IL-1, IL-6 and TNF-α in a dose-dependent manner (ED₅₀, 2 mg/kg). SR-31747 probably abrogated monokine production through an indirect mechanism that involves endogenous corticosteroids. This conclusion was supported by in vivo experiments that shows that: 1) ablation of corticosteroids by use of Mifepristone or adrenalectomy suppress the effect of SR-31747; 2) administration of SR-31747 induces an enhancement of the corticosterone level. SR-31747 improves the survival of animals with endotoxinic shock as a result of monokine inhibition^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

359.98

Formula

C₂₃H₃₄ClN

CAS No.

132173-06-9

Appearance

Liquid (Density: 1.05±0.1 g/cm³)

Color

Light yellow to yellow

SMILES

CCN(C/C=C\C1=CC=C(C2CCCCC2)C(Cl)=C1)C3CCCCC3

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Pure form	-20°C	3 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 5 mg/mL (13.89 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	2.7779 mL	13.8897 mL	27.7793 mL
5 mM	0.5556 mL	2.7779 mL	5.5559 mL
10 mM	0.2778 mL	1.3890 mL	2.7779 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 0.5 mg/mL (1.39 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 0.5 mg/mL (1.39 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 0.5 mg/mL (1.39 mM); Clear solution

This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 95.45%

Select Batch:

Data Sheet (273 KB) SDS (251 KB)

COA (246 KB) HNMR (202 KB) LCMS (410 KB)

Handling Instructions (2659 KB)

References

[1]. Derocq JM, et al. In vivo inhibition of endotoxin-induced pro-inflammatory cytokines production by the sigma ligand SR 31747. J Pharmacol Exp Ther. 1995 Jan;272(1):224-30. [Content Brief]

[2]. Silve S, et al. The immunosuppressant SR 31747 blocks cell proliferation by inhibiting a steroid isomerase in Saccharomyces cerevisiae. Mol Cell Biol. 1996 Jun;16(6):2719-27. [Content Brief]

Animal Administration
^[1]

IL-1, IL-6 and TNF-a are induced by i.p. injection of LPS into BALBIc mice. SR 31747 or reference substances are administered i.p. at the indicated doses together with LPS (0.5 mg/kg). Control animals are treated with LPS and vehicle. Blood samples are collected from the retro-orbital sinus 1 hr or 4 hr after LPS injection for the determination of TNF-α, IL-1 and IL-6. Plasma is prepared and stored frozen until experiments. The IL-1 plasma level is determined by a competitive radioreceptor assay with the use of the murine NOBEL4 cell line and [¹²⁵I]-IL-1. The IL-6 assay is conducted with the B9 murine IL-6-dependent cell line. The TNF-a plasma level is evaluated by the cytolytic assay with the dactinomycin-treated LM6 cell line, derived from the murine fibroblastic L929 cell line. Each determination is performed on a pool of three different plasma samples. None of the molecules administered affect these assays even at the highest dose (10^-5 M), which thereby rules out the possibility of any direct effect caused by the presence ofdrugs in treated-animal sera. In the various tests, one unit is defined as the amount of cytokines able to induce 50% of the maximal effect.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References

[1]. Derocq JM, et al. In vivo inhibition of endotoxin-induced pro-inflammatory cytokines production by the sigma ligand SR 31747. J Pharmacol Exp Ther. 1995 Jan;272(1):224-30. [Content Brief]

[2]. Silve S, et al. The immunosuppressant SR 31747 blocks cell proliferation by inhibiting a steroid isomerase in Saccharomyces cerevisiae. Mol Cell Biol. 1996 Jun;16(6):2719-27. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	2.7779 mL	13.8897 mL	27.7793 mL	69.4483 mL
	5 mM	0.5556 mL	2.7779 mL	5.5559 mL	13.8897 mL
	10 mM	0.2778 mL	1.3890 mL	2.7779 mL	6.9448 mL