The one-dimensional inorganic-organic compound, (C2H10N2)[Mo3O10], was synthesized hydrothermally, and characterized by single crystal X-ray diffraction. The compound was used as a bulk-modifier to fabricate a renewable three-dimensional chemically modified carbon paste electrode (Mo-CPE) by direct mixing. The electrochemical properties of (C2H10N2)[Mo3O10]-modified MoCPE were investigated with respect to their pH-dependence, stability and electrocatalytic activity. The hybrid material bulk modified Mo-CPE not only displays good electrocatalytic activity toward the reduction of BrO3-, IO3-, NO2- and H2O2, but also exhibits good stability and multiple repeatability by simply polishing on the surface of a wet filter paper, a feature which is important for practical applications.