1-(1-Isopropyl-3-oxobutyl)-3-methyl-2-thiourea N-(2-Methyl-5-oxo-3-hexyl)-N'-methylthiourea N-(2-Methyl-5-oxo-3-hexyl)-N-methylthiomocovina [Czech] Urea, 1-(1-isopropyl-3-oxobutyl)-3-methyl-2-thio- YT5730000