2. GPCR/G Protein
  3. Leukotriene Receptor
  4. Ablukast

Ablukast  (Synonyms: Ro 23-3544)

Cat. No.: HY-118958 Purity: 99.36%
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Ablukast (Ro 23-3544) is a specific and active leukotriene receptor antagonist. Ablukast effectively reduces LTC4- and antigen-induced bronchoconstriction. Ablukast is LTD4 receptor antagonist.

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

Ablukast Chemical Structure

Ablukast Chemical Structure

CAS No. : 96566-25-5

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10 mM * 1 mL in DMSO
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10 mM * 1 mL in DMSO USD 259 In-stock
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Based on 1 publication(s) in Google Scholar

Ablukast Related Antibodies

Top Publications Citing Use of Products

View All Leukotriene Receptor Isoform Specific Products:

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LTB4 LTC4/CysLT2 LTD4/CysLT1 LTE4

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Description

Ablukast (Ro 23-3544) is a specific and active leukotriene receptor antagonist. Ablukast effectively reduces LTC4- and antigen-induced bronchoconstriction[1][2]. Ablukast is LTD4 receptor antagonist[3].

IC50 & Target[3]

LTD4

 

In Vitro

Ablukast (Ro 23-3544) is tested for its efficacy in modulating dinitrofluorobenzene (DNFB)-induced allergic and croton oil-induced irritant contact dermatitis in mouse ears. Treatment shortly after elicitation of the dermatitis, and for up to 5 days thereafter, was moderately effective in suppressing DNFB-induced ear swelling in a dose-dependent fashion. Daily pre-treatment of the ears for 1 week causes a more marked reduction of DNFB-induced ear swelling during the first 48 h after elicitation[2].

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

Ablukast Related Antibodies
In Vivo

Ablukast (Ro 23-3544) is tested for its efficacy in modulating dinitrofluorobenzene (DNFB)-induced allergic and croton oil-induced irritant contact dermatitis in mouse ears. Treatment shortly after elicitation of the dermatitis, and for up to 5 days thereafter, was moderately effective in suppressing DNFB-induced ear swelling in a dose-dependent fashion. Daily pre-treatment of the ears for 1 week causes a more marked reduction of DNFB-induced ear swelling during the first 48 h after elicitation[2].

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

Animal Model: Female BALB/c mice[2]
Dosage: Concentrations of 0.1 , 0.5 , 1.0 and 5.0 % of Ablukast
Administration: Applied to one of the pretreated ears 1 h after elicitation and at 24 h intervals on the following 4 days; three times daily
Result: Effectively reduced DNFB-induced ear swelling.
Molecular Weight

498.56

Formula

C28H34O8
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(O)C1CCC2=CC(C(C)=O)=C(C=C2O1)OCCCCCOC3=CC=C(C(O)=C3CCC)C(C)=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 (200.58 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 2.0058 mL 10.0289 mL 20.0578 mL
5 mM 0.4012 mL 2.0058 mL 4.0116 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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Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
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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    90% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (5.01 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.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (5.01 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 (25.0 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)

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 2.0058 mL 10.0289 mL 20.0578 mL 50.1444 mL
5 mM 0.4012 mL 2.0058 mL 4.0116 mL 10.0289 mL
10 mM 0.2006 mL 1.0029 mL 2.0058 mL 5.0144 mL
15 mM 0.1337 mL 0.6686 mL 1.3372 mL 3.3430 mL
20 mM 0.1003 mL 0.5014 mL 1.0029 mL 2.5072 mL
25 mM 0.0802 mL 0.4012 mL 0.8023 mL 2.0058 mL
30 mM 0.0669 mL 0.3343 mL 0.6686 mL 1.6715 mL
40 mM 0.0501 mL 0.2507 mL 0.5014 mL 1.2536 mL
50 mM 0.0401 mL 0.2006 mL 0.4012 mL 1.0029 mL
60 mM 0.0334 mL 0.1671 mL 0.3343 mL 0.8357 mL
80 mM 0.0251 mL 0.1254 mL 0.2507 mL 0.6268 mL
100 mM 0.0201 mL 0.1003 mL 0.2006 mL 0.5014 mL
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Ablukast 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:

Ablukast96566-25-5Ro 23-3544Leukotriene Receptorleukotriene receptorLTC4bronchoconstrictionInhibitorinhibitorinhibit

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