1. GPCR/G Protein
  2. Protease Activated Receptor (PAR)
  3. AC-55541

AC-55541 is a highly selective protease-activated receptor 2 (PAR2) agonist (pEC50=6.7), displays no activity at other PAR subtypes or at over 30 other receptors involved in nociception and inflammation. AC-55541 has pEC50 values of 5.9 and 6.6 in PI hydrolysis assays and Ca2+ mobilization assays and exhibits pronociceptive activity in vivo.

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

AC-55541 Chemical Structure

AC-55541 Chemical Structure

CAS No. : 916170-19-9

Size Price Stock Quantity
Free Sample (0.1 - 0.5 mg)   Apply Now  
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 120 In-stock
Solution
10 mM * 1 mL in DMSO USD 120 In-stock
Solid
5 mg USD 106 In-stock
10 mg USD 185 In-stock
50 mg USD 792 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products

1 Publications Citing Use of MCE AC-55541

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

AC-55541 is a highly selective protease-activated receptor 2 (PAR2) agonist (pEC50=6.7), displays no activity at other PAR subtypes or at over 30 other receptors involved in nociception and inflammation. AC-55541 has pEC50 values of 5.9 and 6.6 in PI hydrolysis assays and Ca2+ mobilization assays and exhibits pronociceptive activity in vivo[1].

IC50 & Target

pEC50: 6.7 (PAR2)[1]

In Vitro

AC-55541 (100 nM; 1 hour) suppresses poly I:C–induced CXCL10 mRNA in NHBE cells[2].

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

RT-PCR[2]

Cell Line: NHBE cells
Concentration: 100 nM (prior to poly I:C stimulation)
Incubation Time: 1 hour
Result: Poly I:C-induced CXCL10 mRNA was suppressed.
Molecular Weight

518.36

Formula

C25H20BrN5O3

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(NC(C(C1=CC=CC=C12)=NNC2=O)C(N/N=C(C)/C3=CC=CC(Br)=C3)=O)C4=CC=CC=C4

Shipping

Room temperature in continental US; may vary elsewhere.

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

DMSO : ≥ 51 mg/mL (98.39 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 1.9292 mL 9.6458 mL 19.2916 mL
5 mM 0.3858 mL 1.9292 mL 3.8583 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • 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 (4.82 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 (4.82 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 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 (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
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.9292 mL 9.6458 mL 19.2916 mL 48.2290 mL
5 mM 0.3858 mL 1.9292 mL 3.8583 mL 9.6458 mL
10 mM 0.1929 mL 0.9646 mL 1.9292 mL 4.8229 mL
15 mM 0.1286 mL 0.6431 mL 1.2861 mL 3.2153 mL
20 mM 0.0965 mL 0.4823 mL 0.9646 mL 2.4115 mL
25 mM 0.0772 mL 0.3858 mL 0.7717 mL 1.9292 mL
30 mM 0.0643 mL 0.3215 mL 0.6431 mL 1.6076 mL
40 mM 0.0482 mL 0.2411 mL 0.4823 mL 1.2057 mL
50 mM 0.0386 mL 0.1929 mL 0.3858 mL 0.9646 mL
60 mM 0.0322 mL 0.1608 mL 0.3215 mL 0.8038 mL
80 mM 0.0241 mL 0.1206 mL 0.2411 mL 0.6029 mL
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AC-55541 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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Product Name:
AC-55541
Cat. No.:
HY-14350
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