1. Immunology/Inflammation
  2. Toll-like Receptor (TLR)
  3. Neoseptin 3

Neoseptin 3 is a Toll-like receptor 4/myeloid differentiation factor 2 (mTLR4/MD-2) agonist with an EC50 of 18.5 μM.

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

Neoseptin 3 Chemical Structure

Neoseptin 3 Chemical Structure

CAS No. : 1622863-21-1

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 110 In-stock
Solution
10 mM * 1 mL in DMSO USD 110 In-stock
Solid
5 mg USD 105 In-stock
10 mg USD 170 In-stock
25 mg USD 340 In-stock
50 mg USD 540 In-stock
100 mg USD 860 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Based on 2 publication(s) in Google Scholar

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Neoseptin 3 is a Toll-like receptor 4/myeloid differentiation factor 2 (mTLR4/MD-2) agonist with an EC50 of 18.5 μM.

IC50 & Target

TLR4

18.5 μM (EC50)

In Vitro

Neoseptin 3 is a Toll-like receptor 4/myeloid differentiation factor 2 (mTLR4/MD-2) agonist with an EC50 of 18.5 μM. Neoseptin-3 induces TNFα production by macrophages in a concentration-dependent manner. Neoseptin-3 induces phosphorylation of IκB kinases α (IKKα), IKKβ, p38, c-Jun N-terminal kinase (JNK), and ERK, and degradation of IκBα, consistent with activation of MAPK and canonical NF-κB signaling. TANK-binding kinase 1 (TBK1) and IRF3 phosphorylation also increase in response to Neoseptin-3[1].

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

Molecular Weight

474.59

Formula

C29H34N2O4

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC(C)(C)OC([C@H](CCC1=CC=CC=C1)NC(C2=CC(CCC3=CC=C(O)C=C3)=C(N)C=C2)=O)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (210.71 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1071 mL 10.5354 mL 21.0708 mL
5 mM 0.4214 mL 2.1071 mL 4.2142 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.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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 (5.27 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 (5.27 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:

Dosage

mg/kg

Animal weight
(per animal)

g

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: 99.57%

References
Kinase Assay
[1]

HEK293T cells are transfected with an NF-κB-dependent luciferase reporter plasmid and clones with stable expression are selected by culture in DMEM containing puromycin. Cells are cotransfected with constructs for mouse or human TLR4 plus mouse or human MD-2, and 2 d later are stimulated with 50 μM Neoseptin-3 or 1 μg/mL LPS for 6 h. Cells are lysed, and luciferase activity is measured[1].

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

Cell Assay
[1]

Cells are seeded onto 96-well plates at 1×105 cells per well and stimulated with Neoseptin-3 [dissolved in DMSO; final DMSO concentrations (≤0.2%) are kept constant in all experiments] for 4 h. Mouse TNFα, IL-6, or IFN-β, or human TNFα in the supernatants are measured by ELISA kits according to the manufacturer’s instructions. Unless otherwise indicated, mouse cells are from wild-type C57BL/6J mice[1].

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

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. 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 2.1071 mL 10.5354 mL 21.0708 mL 52.6770 mL
5 mM 0.4214 mL 2.1071 mL 4.2142 mL 10.5354 mL
10 mM 0.2107 mL 1.0535 mL 2.1071 mL 5.2677 mL
15 mM 0.1405 mL 0.7024 mL 1.4047 mL 3.5118 mL
20 mM 0.1054 mL 0.5268 mL 1.0535 mL 2.6339 mL
25 mM 0.0843 mL 0.4214 mL 0.8428 mL 2.1071 mL
30 mM 0.0702 mL 0.3512 mL 0.7024 mL 1.7559 mL
40 mM 0.0527 mL 0.2634 mL 0.5268 mL 1.3169 mL
50 mM 0.0421 mL 0.2107 mL 0.4214 mL 1.0535 mL
60 mM 0.0351 mL 0.1756 mL 0.3512 mL 0.8780 mL
80 mM 0.0263 mL 0.1317 mL 0.2634 mL 0.6585 mL
100 mM 0.0211 mL 0.1054 mL 0.2107 mL 0.5268 mL
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Neoseptin 3 Related Classifications

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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Neoseptin 3
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