3-BUTEN-2-ONE, 4-(5-NITRO-2-FURYL)- 3-Buten-2-one, 4-(5-nitro-2-furanyl)- (9CI) 3455-61-6 4-(5-Nitro-2-furyl)-3-butene-2-one AI3-23619 NF 150 NSC 58181