3-(2-Chloro-phenyl)-6-hydroxy-5-(2-methoxy-phenylazo)-2-thioxo-1-o-tolyl-2,3-dihydro-1H-pyrimidin-4-one
3-(2-Chloro-phenyl)-6-hydroxy-5-(4-methoxy-phenylazo)-2-thioxo-1-o-tolyl-2,3-dihydro-1H-pyrimidin-4-one
3-(2-Chloro-phenyl)-5-(2-chloro-phenylazo)-6-hydroxy-2-thioxo-1-o-tolyl-2,3-dihydro-1H-pyrimidin-4-one
5-(p-Bromophenylazo)-3-(o-chlorophenyl)-2-thio-1-(o-tolyl)barbituric acid
3-(2-Chloro-phenyl)-6-hydroxy-2-thioxo-1-o-tolyl-5-o-tolylazo-2,3-dihydro-1H-pyrimidin-4-one