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IBMX (3-Isobutyl-1-methylxanthine) PDE inhibitor

Name: IBMX (3-Isobutyl-1-methylxanthine)
Brand: Selleck Chemicals
SKU: S5836
Rating: 5 (14 reviews)

Cat.No.S5836

IBMX (Isobutylmethylxanthine, 1-Methyl-3-Isobutylxanthine) is a nonspecific inhibitor of phosphodiesterase (PDE) with IC50 values of 6.5±1.2, 26.3±3.9 and 31.7±5.3 μM for PDE3, 4 and 5 respectively. It may enhance the intracellular cAMP levels and also acts as an adenosine (A1) receptor antagonist.

Chemical Structure

Molecular Weight: 222.24

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Quality Control

Batch: Purity: 99.94%

99.94

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) phosphatase PPAR Vitamin Carbohydrate Metabolism Mitochondrial Metabolism Drug Metabolite
Other PDE Inhibitors	Rolipram Icariin Cilomilast Mardepodect (PF-2545920) Deltarasin PF-8380 Enpp-1-IN-1 Ibudilast BRL-50481 GSK256066

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
adipocytes, heart and brain cells	Function assay			Affinity constant for inhibition of A1 receptor control of adenylate cyclase in adipocytes, heart and brain cells, Affinity constant=2μM	6279840
adipocytes, heart and brain cells	Function assay			Affinity constant for A2 receptor control of adenylate cyclase in adipocytes, heart and brain cells, Affinity constant=5μM	6279840
3T3L1	Function assay	0.25 mM	48 hrs	Stimulation of lipolysis in mouse 3T3L1 cells at 0.25 mM after 48 hrs by glycerol release assay	24597820
BL21(DE3) pLysS	Function assay			Inhibition of human His-tagged PDE3B catalytic domain expressed in Escherichia coli BL21(DE3) pLysS cells, IC50=0.242μM	26908025
Sf21	Function assay			Inhibition of human C-terminal His6-tagged PDE2A1 (215 to 900 residues) expressed in sf21 cells, IC50=4μM	26908025
BL21-CodonPlus	Function assay			Inhibition of recombinant human His6-tagged PDE5A (535 to 786 residues)/PDE6C expressed in Escherichia coli BL21-CodonPlus cells using [3H]cGMP as substrate, Ki=8.5μM	26908025
Sf9	Function assay		10 mins	Inhibition of human GST-tagged PDE4B expressed in baculovirus infected Sf9 insect cells using cAMP as substrate after 10 mins by PDE-Glo Phosphodiesterase Assay, IC50=28.2μM	29407965
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight	222.24	Formula	C₁₀H₁₄N₄O₂	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	28822-58-4	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	Isobutylmethylxanthine, 1-Methyl-3-Isobutylxanthine			Smiles	CC(C)CN1C2=C(C(=O)N(C1=O)C)NC=N2

Solubility

In vitro
Batch:

DMSO : 45 mg/mL (202.48 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.200mg/ml (9.90mM)	Taking the 1 mL working solution as an example, add 50 μL of 44 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.200mg/ml (9.90mM)	Taking the 1 mL working solution as an example, add 50 μL of 44 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

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:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

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.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 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.

Mechanism of Action

Targets/IC₅₀/Ki	PDE3 6.5 μM PDE4 26.3 μM PDE5 31.7 μM
In vitro	IBMX rescues PGE2-induced phosphorylation of AKT inhibited in cells from the EP4LysM mice, which protects against cAMP degradation.
In vivo	IBMX decreases the liver glycogen storage in both species of mice and hyperglycemic rat.
References	[1] https://pubmed.ncbi.nlm.nih.gov/15237094/ [2] https://pubmed.ncbi.nlm.nih.gov/22495185/ [3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8904489/ [4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3586914/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT02807415	Completed	Cystic Fibrosis	Hannover Medical School\|Heidelberg University\|University of Giessen	June 1 2016	--
NCT03652090	Completed	Cystic Fibrosis	Institut National de la Santé Et de la Recherche Médicale France\|ABCF2	September 1 2010	--

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