N,N-Dimethyl-N'-[4-(1-methylethyl)phenyl]urea-13C6; N,N-Dimethyl-N'-(4-isopropylphenyl)urea-13C6; 3-p-Cumenyl-1,1-dimethylurea-13C6; 3-(4-Isopropylphenyl)-1,1-dimethylurea-13C6; Alon-13C6; Arelon R-13C6; Graminon-13C6; Harpun-13C6; Izoturon-13C6; Protugan-13C6; Tolkan;Isoproturon-13C6
