2,4(1H,3H)-Pyrimidinedione,6-methyl-5-nitro- , its cas register number is 16632-21-6. It also can be called 2,4-Dihydroxy-6-methyl-5-nitropyrimidine ; 5-Nitro-6-methyluracil ; and 6-Metyl-5-nitrouracil .