AGN 192403 (BRD4780) is a potent and selective imidazoline-1 receptor antagonist with a Ki value of 42 nM. AGN 192403 is also a TMED9 inhibitor. AGN 192403 shows protective effects on oxidative cytotoxicity and mitochondrial inhibitor-induced cytotoxicity in astrocytes. AGN 192403 mitigates the proliferation and migration of differentiated glioma tumor cells. AGN 192403 can be used for glioma tumor and neurological diseases research[1][2].