1,2-Dihydro-5-methyl-2-(6-methyl-2-((1-methylethyl)thio)-4-pyrimidinyl)-3H-pyrazol-3-one 154496-71-6 2-Isopropylthio-6-methyl-4-(1-3-methylpyrazolon-5(2H)-yl)pyrimidine 3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-2-(6-methyl-2-((1-methylethyl)thio)-4-pyrimidinyl)-