157203-19-5 DNSGU Dinitrosotetrahydroimidazo(4,5-d)imidazole-2,5(1H,3H)-dione mixt. Imidazo(4,5-d)imidazole-2,5(1H,3H)-dione, tetrahydro-1,4-dinitroso-, mixt. with tetrahydro-1,6-dinitrosoimidazo(4,5-d)imidazole-2,5(1H,3H)-dione Tetrahydro-1,4-dinitrosoimidazo(4,5-d)imidazole-2,5(1H,3H)-dione mixt. with tetrahydro-1,6-dinitrosoimidazo(4,5-d)imidazole-2,5(1H,3H)-dione