Formaldehyde derivatives are chemical compounds that are derived from formaldehyde, a simple organic compound with the formula CH₂O. These derivatives are formed when formaldehyde reacts with other substances, leading to a variety of products used in different applications. Common examples include formalin, which is a solution of formaldehyde in water, and urea-formaldehyde resins, widely used in adhesives and wood products. These compounds play significant roles in industries such as construction, textiles, and healthcare. Some formaldehyde derivatives are utilized as disinfectants or preservatives, while others serve as building blocks for more complex chemicals. However, safety concerns regarding formaldehyde exposure have led to regulations on its use and the development of safer alternatives.