5-nitro-2-furaldehyde azine; Nitrofurazone Related Compound A; (E)-1-(5-nitrofuran-2-yl)-N-[(E)-(5-nitrofuran-2-yl)methylideneamino]methanimine; Nifuroxazide EP impurity D; Nitrofurazone USP Related Compound A; Nitrofurazone Impurity 1(Nitrofurazone USP Related Compound A); Nitrofural Related Compound A