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I7018

Sigma-Aldrich

3-Isobutyl-1-methylxanthine

3-Isobutyl-1-methylxanthine

≥99%, BioUltra

Synonym(s):

1-Methyl-3-isobutylxanthine, 3,7-Dihydro-1-methyl-3-(2-methylpropyl)-1H-purine-2,6-dione, 3-Isobutyl-1-methyl-2,6(1H,3H)-purinedione, IBMX

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About This Item

Empirical Formula (Hill Notation):
C10H14N4O2
CAS Number:
Molecular Weight:
222.24
Beilstein:
247859
EC Number:
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.77
Pricing and availability is not currently available.

product line

BioUltra

Quality Level

Assay

≥99%

impurities

<0.005% Phosphorus (P)

ign. residue

<0.1%

mp

200-201 °C (lit.)

solubility

DMSO: soluble 1 M (with gentle warming)

anion traces

sulfate (SO42-): <0.05%

cation traces

Al: <0.0005%
Ca: <0.005%
Cu: <0.0005%
Fe: <0.005%
K: <0.05%
Mg: <0.005%
NH4+: <0.05%
Na: <0.005%
Pb: <0.001%
Zn: <0.0005%

storage temp.

−20°C

SMILES string

CC(C)CN1C(=O)N(C)C(=O)c2[nH]cnc12

InChI

1S/C10H14N4O2/c1-6(2)4-14-8-7(11-5-12-8)9(15)13(3)10(14)16/h5-6H,4H2,1-3H3,(H,11,12)

InChI key

APIXJSLKIYYUKG-UHFFFAOYSA-N

Gene Information

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Application

3-Isobutyl-1-methylxanthine, an inhibitor of adenosine 3′,5′-cyclic monophosphate phosphodiesterase (cAMP PDE), has been used:
  • for adipogenic differentiation[1]
  • in tissue culture[2]
  • 3T3-L1 preadipocyte differentiation([3]

Biochem/physiol Actions

The increase in cAMP level as a result of phosphodiesterase inhibition by IBMX activates PKA, leading to decreased proliferation, increased differentiation, and induction of apoptosis. IBMX inhibits phenylephrine-induced release of 5-hydroxytryptamine from neuroendocrine epithelial cells of the airway mucosa (IC50: 1.3 μM). IBMX also serves as an adenosine receptor antagonist. IBMX has been shown to inhibit ion channels in the neuromuscular junction, GH3 cells, and vascular smooth muscle cells. IBMX induces calcium release from intracellular stores in sensory neurons.

Features and Benefits

  • Trace element testing by ICP
  • ICP testing for trace sulfur (as sulfate) and phosphorus (as phosphate) content
  • Ion chromatography testing for trace ammonium content

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Preferential apelin-13 production by the proprotein convertase PCSK3 is implicated in obesity
Shin K, et al.
FEBS Open Bio, 3(1), 328-333 (2013)
Distinct roles of the phosphatidate phosphatases lipin 1 and 2 during adipogenesis and lipid droplet biogenesis in 3T3-L1 cells
Sembongi H, et al.
The Journal of biological chemistry, jbc-M113 (2013)
Uniaxial mechanical strain modulates the differentiation of neural crest stem cells into smooth muscle lineage on micropatterned surfaces
Li X, et al.
PLoS ONE, 6(10), e26029-e26029 (2011)
Ryan D Rose et al.
Theriogenology, 79(1), 142-148 (2012-10-30)
Physical removal of mammalian cumulus-oocyte complexes (COCs) from ovarian follicles results in spontaneous resumption of meiosis, largely because of a decrease in cAMP concentrations, causing asynchrony between cytoplasmic and nuclear maturation and decreased oocyte developmental competence. The aim of this
Masayoshi Higuchi et al.
Stem cells and development, 22(6), 878-888 (2012-10-03)
Both reactive oxygen species (ROS) and Forkhead box O (FOXO) family transcription factors are involved in the regulation of adipogenic differentiation of preadipocytes and stem cells. While FOXO has a pivotal role in maintaining cellular redox homeostasis, the interactions between

Questions

1–3 of 3 Questions  
  1. Hi I have a question about the preparation, Is it dissolved in ethanol or DMSO? Because I prepared in both I found problems with the dissolving. Thanks

    1 answer
    1. The solubility instructions can be found in the Product Information Sheet as follows:
      IBMX is soluble in different organic solvents, as follows:
      Warm methanol at 50 mg/mL
      Ethanol at 10 mg/mL. Dissolves at 25 mg/mL only with sonication.(Schwertner, H.A. et al., Analyt. Chem., 48(13), 1875-1878 (1976))
      Various publications report preparation in DMSO at 50 mg/mL (Liu, L., and Keefe, D.L., Methods Mol. Biol., 371, 191-207 (2007).) and at 110 mg/mL (Eckel, J., The Cellular Secretome and Organelle Crosstalk. Academic Press/Elsevier, p. 167 (2018)).
      A 10 mM aqueous solution can be prepared by warming in a boiling water bath.

      Please access the Product Information Sheet below:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/116/537/i7018pis.pdf

      Helpful?

  2. After a first dillution in DMSO I redillute this stock solution in DMEM and it always produce a white precipitate that needs to be thoroughly vortexed. Do you have any advice to avoid this ?

    1 answer
    1. When further diluting the stock solution with an aqueous buffer or medium, a 10 mM concentration may be prepared by warming in a boiling water bath. Please see the link below to review additional information available in the product datasheet:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/116/537/i7018pis.pdf

      Helpful?

  3. what for is this product (IBMX-(I7018)-is it liquid or solid

    1 answer
    1. This material is in powder form. This information is available in the product specification sheet. Please see the link below to review this document: https://www.sigmaaldrich.com/US/en/specification-sheet/SIGMA/I7018

      Helpful?

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