58620
3-Isobutyl-1-methylxanthine
purum, ≥98.0% (HPLC)
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
EC Number:
249-259-3
UNSPSC Code:
41106305
MDL number:
Beilstein/REAXYS Number:
247859
grade
purum
assay
≥98.0% (HPLC)
mp
200-201 °C (lit.), 201-203 °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
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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.
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.
Other Notes
Raises intracellular cyclic AMP levels; Produces partial inhibition of cAMP-phosphodiesterase
Regulatory Information
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R J Wojcikiewicz et al.
Biochimica et biophysica acta, 805(1), 25-29 (1984-09-14)
Acetylcholine, oxotremorine and carbachol, compounds that exhibit muscarinic agonist activity, maximally inhibited basal prolactin secretion from GH3 cells by approx. 50% and intracellular cyclic AMP levels by approx. 20%. Both parameters were inhibited with similar potencies by each agonist. These
A E Kalderon et al.
Histochemistry, 65(3), 277-289 (1980-01-01)
Isolated bovine thyroid plasma membrane preparations were obtained by isopycnic density gradient centrifugation. Cyclic AMP-PDEase (EC 3.1.4.c) activity has been demonstrated by electron microscopic histochemistry on the unit membrane of isolated bovine thyroid cells. 3-isobutyl-1-methyl-xanthine (IBMX) produced partial inhibition, while
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