nicarbazin;1,3-bis(4-nitrophenyl)urea--4,6-dimethylpyrimidin-2-ol (1:1);N,N-bis-(4-nitrophenyl)-urea with 4,6-Dimethyl-2(1H)-pyrimidinone 1:1;Perfume for benzin No. 63;n,n'-bis(4-nitrophenyl)urea compound with 4,6-dimethyl-2-pyrimidinone;1,3-bis(4-nitrophenyl)urea-4,6-dimethylpyrimidin-2-ol (1:1);1,3-bis(4-nitrophenyl)urea,4,6-dimethyl-1H-pyrimidin-2-one;Nicarbazine;MK 75;Nicarb;Nicarbasin;Nicoxin;Nicrazin;Nicrazine;Nirazin