2-Amino-3-methyl-5-nitropyridine , its cas register number is 18344-51-9. It also can be called 2-Amino-5-nitro-3-picoline ; 3-methyl-5-nitropyridin-2-amine ; 2-Bromo-5-Nitro-3-Methyl Pyridine ; 3-Methyl-5-nitro-pyridin-2-ylamin . It is a white to yellow crystalline powder.