2-Amino-5-methyl-3-nitropyridine , its cas register number is 7598-26-7. It also can be called 2-Pyridinamine,5-methyl-3-nitro- ; 2-Amino-3-Nitro-5-Picoline ; 6-Amino-5-Nitro-3-Picoline ; Amino(2-)-3-Nitro-5-Methylpyridine ; 5-Methyl-3-nitropyridin-2-amine . It is a ochre crystalline powder.