Hydrazine, HY druh zeen, is an important chemical compound used in jet and rocket fuels. Industry also uses it to make agricultural and textile chemicals, drugs, explosives, photographic developers, and blowing agents used in the manufacture of foam rubber. Hydrazine is also used to prevent rusting in boilers and nuclear reactors. Its derivatives are used to regulate the growth of plants, such as grass on parkways. These chemicals keep the grass from growing so fast that it needs constant attention.