2-Aminothiazole is used in the synthesis of 2-aminothiazole-modified silica gel and also used in Ulmann coupling with 2-chlorobenzoic acids mediated by ultrasonic irradiation. It acts as a component of disperse dye, thyroid inhibitor in the treatment of hyperthyroidism, as the acid tartrate and as a therapeutic drug for prion diseases. It is also used to kill bacteria.