(1-(5-Nitro-2-furanyl)methyleneamino)tetrahydropyrimidin-2-one methanol propionate 92950-21-5 Butanoic acid, (tetrahydro-3-(((5-nitro-2-furanyl)methylene)amino)-2-oxo-1(2H)-pyrimidinyl)methyl ester M 279 M-279