3-isobutyl-1-methylxanthine

3-isobutyl-1-methylxanthine (IBMX) is a synthetic xanthine derivative widely used in research as a non-selective, non-specific inhibitor of cyclic nucleotide phosphodiesterases (PDEs), particularly those that degrade cAMP and cGMP. By inhibiting these enzymes, IBMX increases intracellular levels of cAMP and cGMP, leading to activation of downstream signaling pathways. It also acts as an antagonist at adenosine receptors. These actions make it a valuable tool in studies involving signal transduction, melanogenesis induction, oocyte maturation arrest, neuroprotection, cardiovascular function modulation, and smooth muscle relaxation. IBMX has no approved pharmaceutical indications but is extensively used in laboratory settings for mechanistic studies related to metabolism, cognition enhancement research, respiratory disease models (due to bronchodilatory effects), and sports science[1][2][5].

Other names

isobutylmethylxanthinemethylisobutylxanthine1-methyl-3-isobutylxanthineisobutyltheophyllineMIX