1-((5-(p-Nitrophenyl)furfurylidene)amino)hydantoin sodium salt hydrate 2,4-Imidazolidinedione, 1-(((5-(4-nitrophenyl)-2-furanyl)methylene)amino)-, sodium salt, hydrate (2:7) 24868-20-0 DANTROLENE SODIUM Dantamacrin Dantrium Dantrix Dantrolene sodium hemiheptahydrate F 440 Hydantoin, 1-((5-(p-nitrophenyl)furfurylidene)amino)-, sodium salt, hydrate (2:7)