Cyanamide is a chemical compound with the formula CN2H2. It appears as a white crystalline solid and is used primarily in agriculture as a fertilizer and in the synthesis of various chemicals. Cyanamide can also refer to calcium cyanamide, which is used in the production of nitrogen fertilizers and as a herbicide. The compound is known for its ability to release nitrogen when applied to soil, enhancing plant growth. It is important to handle cyanamide with care due to its potential toxicity.