For research use only.
Catalog No.S4095 Synonyms: CM 9155
CAS No. 23674-86-4
Difluprednate (difluoroprednisolone butyrate acetate, DFBA, CM 9155) is a synthetic difluorinated prednisolone derivative, it is originally developed for dermatologic applications.
Purity & Quality Control
|Description||Difluprednate (difluoroprednisolone butyrate acetate, DFBA, CM 9155) is a synthetic difluorinated prednisolone derivative, it is originally developed for dermatologic applications.|
The difluprednate emulsion formulation begin by suspending DFBA in a variety of oils (castor, cottonseed, medium-chain fatty acid triglyceride, oleic, olive, peanut, and soybean).  Difluprednate ophthalmic emulsion's active metabolite, 6α,9-difluoroprednisolone 17-butyrate (DFB), has the lowest Ki value (611 nM) for the glucocorticoid receptor and is significantly more active than prednisolone, which has a Ki value of 3.4 nM. 
|In vivo||Difluprednate emulsion is rapidly deacetylated in the aqueous humor to difluoroprednisolone butyrate (DFB) in rats and rabbits, the drug’s active metabolite, which has a similar corticosteroid activity profile. Radio-labeled difluprednate is instilled in the right eyes of pigmented rabbits in a separate study examining DFBA excretion. Difluprednate (0.05% emulsion) results in higher aqueous humor concentrations than the suspension form in the eyes of rabbits. Difluprednate concentrations ≥0.01% shows a statistically significant inhibition of inflammation compared to saline in a rabbit model, with the anti-inflammatory response proceeding in a dose-dependent manner. Difluprednate suppresses uveitis in all three concentration (0.002%, 0.01%, and 0.05%) in a dose-dependent manner in rats, and difluprednate 0.05% shows statistically superior anti-inflammatory activity compared to Betamethasone (0.1%). |
|In vitro||DMSO||100 mg/mL (196.63 mM)|
|Ethanol||25 mg/mL (49.15 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.
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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 SDS / COA (available on product pages).
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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 SDS / 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:
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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.
Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT00616993||Completed||Drug: Difluprednate|Other: Placebo||Inflammation||Sirion Therapeutics Inc.||January 2008||Phase 3|
|NCT00616070||Completed||Drug: Difluprednate|Other: Placebo||Inflammation||Sirion Therapeutics Inc.||December 2007||Phase 3|
|NCT00407225||Completed||Drug: Difluprednate Ophthalmic Emulsion||Inflammation||Sirion Therapeutics Inc.||December 1999||Phase 2|
|NCT00430092||Completed||Drug: Difluprednate|Drug: Placebo||Inflammation||Sirion Therapeutics Inc.||Phase 3|
|NCT00429923||Completed||Drug: Difluprednate|Drug: Placebo||Inflammation||Sirion Therapeutics Inc.||Phase 3|
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.
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