Widely used as a disinfectant and preservative in medical laboratories and mortuaries due to its ability to fix tissues and prevent decay. Commonly employed in the production of industrial resins, such as urea-formaldehyde and phenol-formaldehyde, which are key components in plywood, particleboard, and other wood-based panels. Used in the manufacturing of textiles to provide crease resistance and improve durability. Plays a role in the formulation of vaccines, where it inactivates viruses and bacteria without damaging their structure, allowing the immune system to recognize them. Also utilized in embalming fluids to temporarily preserve biological specimens. In agriculture, applied as a fumigant and sterilizing agent for soil and equipment.