2. Immunology/Inflammation
  3. Kallikrein
  4. LSP-249

LSP-249 (example 35), extracted from patent WO2016011209A1, is a plasma kallikrein inhibitor under the study for angioedema, with an EC50 less than 100 nM in cell.

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

LSP-249 Chemical Structure

LSP-249 Chemical Structure

CAS No. : 1801253-04-2

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 88 In-stock
Solution
10 mM * 1 mL in DMSO USD 88 In-stock
Solid
1 mg USD 38 In-stock
5 mg USD 80 In-stock
10 mg USD 130 In-stock
25 mg USD 250 In-stock
50 mg USD 400 In-stock
100 mg USD 650 In-stock
200 mg   Get quote  
500 mg   Get quote  

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

Customer Review

Based on 1 publication(s) in Google Scholar

LSP-249 Related Antibodies

Top Publications Citing Use of Products

View All Kallikrein Isoform Specific Products:

View All Isoforms
KLK1 KLK5 KLK8 KLK14 KLKB1

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

LSP-249 (example 35), extracted from patent WO2016011209A1, is a plasma kallikrein inhibitor under the study for angioedema, with an EC50 less than 100 nM in cell[1].

IC50 & Target

EC50：< 100 nM (kallikrein in cell)[1].
Molecular Weight

431.92

Formula

C24H22ClN5O
CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

O=C(C1=CC(CC2=CC=C3N=CC(Cl)=CC3=C2)=NC=C1)NCC4=C(C)C=C(N)N=C4C
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 : 31.25 mg/mL (72.35 mM; ultrasonic and warming and heat to 60°C; 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 2.3152 mL 11.5762 mL 23.1524 mL
5 mM 0.4630 mL 2.3152 mL 4.6305 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: ≥ 2.08 mg/mL (4.82 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: 2.08 mg/mL (4.82 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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
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 2.3152 mL 11.5762 mL 23.1524 mL 57.8811 mL
5 mM 0.4630 mL 2.3152 mL 4.6305 mL 11.5762 mL
10 mM 0.2315 mL 1.1576 mL 2.3152 mL 5.7881 mL
15 mM 0.1543 mL 0.7717 mL 1.5435 mL 3.8587 mL
20 mM 0.1158 mL 0.5788 mL 1.1576 mL 2.8941 mL
25 mM 0.0926 mL 0.4630 mL 0.9261 mL 2.3152 mL
30 mM 0.0772 mL 0.3859 mL 0.7717 mL 1.9294 mL
40 mM 0.0579 mL 0.2894 mL 0.5788 mL 1.4470 mL
50 mM 0.0463 mL 0.2315 mL 0.4630 mL 1.1576 mL
60 mM 0.0386 mL 0.1929 mL 0.3859 mL 0.9647 mL
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LSP-249 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.

Keywords:

LSP-2491801253-04-2LSP249LSP 249KallikreinKLKKallikrein-related peptidaseangioedemaInhibitorinhibitorinhibit

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