2-((1-Methyl-5-nitro-2-imidazolylmethyl)thio)pyrimidine 5-23-11-00112 (Beilstein Handbook Reference) 57235-18-4 BRN 0890168 Pyrimidine, 2-((1-methyl-5-nitro-2-imidazolylmethyl)thio)-