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I5879

Sigma-Aldrich

3-Isobutyl-1-methylxanthine

≥99% (HPLC), powder

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:
28822-58-4
Molecular Weight:
222.24
Beilstein/REAXYS Number:
247859
EC Number:
249-259-3
MDL number:
MFCD00005584
UNSPSC Code:
12352202
PubChem Substance ID:
24277680
NACRES:
NA.77

Quality Level

200

assay

≥99% (HPLC)

form

powder

color

white to off-white

mp

200-201 °C (lit.)

solubility

DMSO: 1 M (with gentle warming)
ethanol: 10 mg/mL

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

human ... PRKAR1A(5573) , PRKAR1AP(5574) , PRKAR1B(5575) , PRKAR2A(5576) , PRKAR2B(5577)
rat ... Adora1(29290) , Adora2a(25369)

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General description

3-isobutyl-1-methylxanthine/IBMX is a non-selective, non-specific inhibitor of cAMP and cGMP phosphodiesterases. IBMX can induce melanogenesis, and can be used as a positive control in melanogenesis research. In oocyte research, IBMX assists in maintaining the germinal vesicle (GV) arrest of prophase I oocytes.

Application

3-Isobutyl-1-methylxanthine has been used:
  • in the differentiation of mesenchymal stem cells (MSC)
  • as a culture medium supplement for inducing adipogenic differentiation
  • as a supplement in Krebs-Ringer buffer with HEPES (KRBH) solution for inducing glucose-stimulated insulin secretion (GSIS)
  • in the characterization of adipose-derived mesenchymal stem cells
  • in cyclic adenosine monophosphate (cAMP) assay
  • in phosphodiesterase (PDE) inhibition

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Skin pigmentation enhancers
Comprehensive Series in Photosciences, 3, 637-675 (2001)
Crystal structures of phosphodiesterases 4 and 5 in complex with inhibitor 3-isobutyl-1-methylxanthine suggest a conformation determinant of inhibitor selectivity
Huai Q, et al.
The Journal of Biological Sciences, 279(13), 13095-13101 (2004)
ZebraBeat: a flexible platform for the analysis of the cardiac rate in zebrafish embryos
De L, et al.
Scientific reports, 4, 4898-4898 (2014)
Canine adipose-derived-mesenchymal stem cells do not lose stem features after a long-term cryopreservation
Martinello T, et al.
Research in Veterinary Science, 91(1), 18-24 (2011)
A conserved aromatic lock for the tryptophan rotameric switch in TM-VI of seven-transmembrane receptors
Holst B, et al.
The Journal of Biological Chemistry, 285(6), 3973-3985 (2010)
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