For research use only.
Catalog No.S1439 Synonyms: SB 252218
CAS No. 53902-12-8
Tranilast (SB 252218) is an antiallergic drug by inhibiting lipid mediator and cytokine release from inflammatory cells, used for the treatment of allergic disorders such as asthma, allergic rhinitis and atopic dermatitis.
Purity & Quality Control
Choose Selective Immunology & Inflammation related Inhibitors
|Description||Tranilast (SB 252218) is an antiallergic drug by inhibiting lipid mediator and cytokine release from inflammatory cells, used for the treatment of allergic disorders such as asthma, allergic rhinitis and atopic dermatitis.|
Tranilast is an anti-allergic drug inhibiting the release of substances such as histamine and prostaglandins from mast cells, which suppresses collagen synthesis of fibroblasts derived from keloid tissues. Tranilast (3-300 mM) suppresses the collagen synthesis of fibroblasts from keloid and hypertrophic scar tissue but not healthy skin fibroblasts. Tranilast (30-300 mM) inhibits the release of transforming growth factor (TGF)-beta 1 from keloid fibroblasts, which enhances the collagen synthesis of keloid fibroblasts.  Tranilast improves keloids and hypertrophic scars which originate from the abnormal proliferation and excessive collagen accumulation of fibroblasts. Tranilast inhibits the release of TGF-beta 1, IL-1 beta and PGE2 from the human monocytes-macrophages.  Tranilast inhibits the proliferation stimulated with fetal bovine serum (FBS), TGF-beta 1 and platelet-derived growth factor-BB (PDGF-BB) as well as PDGF-BB-induced migration. Tranilast exhibits inhibitory effects on spontaneous collagen synthesis and TGF-beta 1-induced collagen and glycosaminoglycan synthesis. 
|In vivo||Tranilast results in a 58% reduction in TGF-beta1-induced 3[H]-hydroxyproline incorporation in the diabetic heart of rats. Tranilast attenuates cardiac fibrosis by 37% in association with reduction in phospho-Smad2 in the diabetic heart of rats.  Tranilast treatment completely prevents the increase in chymaselike activity, reduces the chymase mRNA levels by 43%, and decreases the carotid intima/media ratio by 63% in the carotid artery of dogs. |
-  Suzawa H, et al. Jpn J Pharmacol, 1992, 60(2), 91-96.
-  Suzawa H, et al. Jpn J Pharmacol, 1992, 60(2), 85-90.
-  Miyazawa K, et al. Atherosclerosis, 1995, 118(2), 213-221.
|In vitro||DMSO||66 mg/mL (201.63 mM)|
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation ()|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take μL DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.