I5879

Sigma

 

3-Isobutyl-1-methylxanthine

≥99% (HPLC), powder

Synonym:1-Methyl-3-isobutylxanthine, 3-Isobutyl-1-methyl-2,6(1H,3H)-purinedione, IBMX, 3,7-Dihydro-1-methyl-3-(2-methylpropyl)-1H-purine-2,6-dione
CAS Number:28822-58-4
Linear Formula:C10H14N4O2
Molecular Weight:222.24
Beilstein Registry Number:247859
EC Number:249-259-3
MDL number:MFCD00005584
PubChem Substance ID:24277680

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Description

Frequently Asked QuestionsLive Chat and Frequently Asked Questions are available for this Product.
Biochem/physiol ActionsNon-specific inhibitor of cAMP and cGMP phosphodiesterases. 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). Also serves as an adenosine receptor antagonist. Shown to inhibit ion channels in the neuromuscular junction, GH3 cells, and vascular smooth muscle cells.

Properties

assay≥99% (HPLC)
formpowder
color white to off-white
mp200-201 °C(lit.)
solubilityDMSO: 1 M with gentle warming
 ethanol: 10 mg/mL
Gene Informationhuman ... PRKAR1A(5573), PRKAR1AP(5574), PRKAR1B(5575), PRKAR2A(5576), PRKAR2B(5577)
 rat ... Adora1(29290), Adora2a(25369)
storage temp.−20°C

Safety

Personal Protective Equipmentdust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard CodesXn
Risk Statements22
WGK Germany3
RTECSZD8500000

References

referenceShafer, S.H., et al., Reduced DNA synthesis and cell viability in small cell lung carcinoma by treatment with cyclic AMP phosphodiesterase inhibitors. Biochem. Pharmacol. 56, 1229-1236, (1998)
 Chen, T.C., et al., Up-regulation of the cAMP/PKA pathway inhibits proliferation, induces differentiation, and leads to apoptosis in malignant gliomas. Lab. Invest. 78, 165-174, (1998)
 Elks, M.L., and Manganiello, V.C., A role for soluble cAMP phosphodiesterases in differentiation of 3T3-L1adipocytes. J. Cell Physiol. 124, 191-198, (1985)
 Freitag, A., et al., Phosphodiesterase inhibitors suppress α2-adrenoceptor-mediated 5-hydroxytryptamine release from tracheae of newborn rabbits. Eur. J. Pharmacol. 354, 67-71, (1998)
 McKinley, J.B., et al., The interaction of adenosine analogues with cAMP-generating and cAMP-independent positive inotropic agents in rabbit left atrium. Naunyn Schmiedebergs Arch. Pharmacol. 342, 605-612, (1990)
 Fearon, I.M., et al., Inhibition of recombinant human cardiac L-type Ca2+ channel α1C subunits by 3-isobutyl-1-methylxanthine. Eur. J. Pharmacol. 342, 353-358, (1998)
BeilsteinBeil. 26,IV,2350
 FT-IR 1 (2), 711:C / FT-IR 2 (3), 3670:A / IR-Spectra (2), 1120:G / IR-Spectra (3), 1288:B / NMR-Reference 2 (2), 586:D / RegBook 1 (2), 2467:K / Sigma FT-IR 1 (1), 1002:C / Structure Index 1, 390:E:4