1. Metabolic Enzyme/Protease
  2. E1/E2/E3 Enzyme
  3. LS-102

LS-102 is a selective E3 ubiquitin ligase synoviolin (Syvn1) inhibitor. LS-102 inhibits the autoubiquitination of synoviolin with an IC50 of 35 μM. LS-102 has the potential for rheumatoid arthritis treatment.

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

LS-102 Chemical Structure

LS-102 Chemical Structure

CAS No. : 1456891-34-1

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 132 In-stock
Solution
10 mM * 1 mL in DMSO USD 132 In-stock
Solid
5 mg USD 120 In-stock
10 mg USD 190 In-stock
50 mg USD 550 In-stock
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 2 publication(s) in Google Scholar

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  • Biological Activity

  • Purity & Documentation

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Description

LS-102 is a selective E3 ubiquitin ligase synoviolin (Syvn1) inhibitor. LS-102 inhibits the autoubiquitination of synoviolin with an IC50 of 35 μM. LS-102 has the potential for rheumatoid arthritis treatment[1][2].

In Vitro

LS-102 inhibits proliferation of RSCs with an IC50 of 5.4 μM[1].
LS-102 suppresses proliferation of rheumatoid synovial cells (RSCs) in a Syvn1-dependent manner. LS-102 suppresses polyubiquitination of target proteins of Syvn1, including nuclear factor erythroid 2-related factor 2 (NRF2), V247M α-sarcoglycan mutant, and PGC-1β. LS-102 inhibits E3 ligase activity of Synoviolin (Syvn1)[2].

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

Cell Viability Assay[1]

Cell Line: Rheumatoid synovial cells (RSCs)
Concentration: 20, 40, 60 μM
Incubation Time: 12 hours
Result: Inhibited proliferation of RSCs with an IC50 of 5.4 µM.
In Vivo

LS-102 (1.3-4 mg/kg; i.p.; daily for 4 weeks) reduces clinical severity scores in a CIA model[1].

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

Animal Model: 7-week-old DBA/1 male mice (CIA model)[1]
Dosage: 1.3, 4.0 mg/kg
Administration: I.p.; daily for 4 weeks
Result: Reduced the clinical severity scores.
Molecular Weight

452.60

Formula

C24H36N8O

CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

CCNCCN(CC)C1=NC(NC2=CC=C3N=COC3=C2)=NC(N[C@H](C4CCCCC4)C)=N1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (220.95 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 2.2095 mL 11.0473 mL 22.0946 mL
5 mM 0.4419 mL 2.2095 mL 4.4189 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 (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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: ≥ 2.5 mg/mL (5.52 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (5.52 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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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).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

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
References

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 (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.2095 mL 11.0473 mL 22.0946 mL 55.2364 mL
5 mM 0.4419 mL 2.2095 mL 4.4189 mL 11.0473 mL
10 mM 0.2209 mL 1.1047 mL 2.2095 mL 5.5236 mL
15 mM 0.1473 mL 0.7365 mL 1.4730 mL 3.6824 mL
20 mM 0.1105 mL 0.5524 mL 1.1047 mL 2.7618 mL
25 mM 0.0884 mL 0.4419 mL 0.8838 mL 2.2095 mL
30 mM 0.0736 mL 0.3682 mL 0.7365 mL 1.8412 mL
40 mM 0.0552 mL 0.2762 mL 0.5524 mL 1.3809 mL
50 mM 0.0442 mL 0.2209 mL 0.4419 mL 1.1047 mL
60 mM 0.0368 mL 0.1841 mL 0.3682 mL 0.9206 mL
80 mM 0.0276 mL 0.1381 mL 0.2762 mL 0.6905 mL
100 mM 0.0221 mL 0.1105 mL 0.2209 mL 0.5524 mL
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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LS-102
Cat. No.:
HY-135844
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