Furazolidone, denitro- , with CAS number of 6270-33-3, can be called 2-Oxazolidone, 3-((2-furanylmethylene)amino)- ; 2-Oxazolidinone, 3-(furfurylideneamino)- ; 3-((2-Furanylmethylene)amino)-2-oxazolidone .