How should 4-Chloropyrido[3,2-d]pyrimidine (CAS: 51674-77-2) be stored?

4-Chloropyrido[3,2-d]pyrimidine (CAS: 51674-77-2) should be stored in a cool, dry place away from direct sunlight. It should be kept in a sealed container to prevent moisture and air from affecting its quality. The storage temperature should be below 25°C, and the container should be tightly sealed to prevent evaporation and contamination. Avoid storing it near incompatible materials such as strong acids or oxidizers.