2-Oxazolidinone, 3-(((5-nitro-2-furoyl)methylene)amino)- 3-(((5-Nitro-2-furoyl)methylene)amino)-2-oxazolidinone 3-(5-Nitro-2-furylglyoxylideneamino)-2-oxazolidone 90323-37-8 BRN 1145209