3-Methylxanthine 是黄嘌呤衍生物，能够抑制 GMP，在豚鼠分离的气管肌肉中测得其 IC50 值为 920 μM。 Product Introduction 3-Methylxanthine, a xanthine derivative, is a cyclic guanosine monophosphate (GMP) inhibitor, with an IC50 of 920 μM on guinea-pig isolated trachealis muscle. Application 3-Methylxanthine is a Xanthine derivative with diuretic, cardiac stimulant and smooth muscle relaxant activities; isomeric with theobromine.They can also act as Bronchodilator.