Formaldehyde (/ fɔːrˈmældɪhaɪd / ⓘ for-MAL-di-hide, US also / fər -/ ⓘ fər-) (systematic name methanal) is an organic compound with the chemical formula CH2O and structure H2C=O. The …

Jul 7, 2025 · Formaldehyde is a chemical used widely by industry to manufacture building materials and numerous household products. It is also a by-product of combustion and certain other natural …

A fact sheet that discusses formaldehyde and its possible association with cancer. Includes resources for more information.

Oct 14, 2025 · Formaldehyde is toxic to humans, causing respiratory side effects and increasing the risk of certain cancers. Learn when exposure may be dangerous.

Dec 12, 2025 · Formaldehyde, an organic compound, the simplest of the aldehydes, used in large amounts in various chemical manufacturing processes.

What is formaldehyde? At room temperature, formaldehyde is a colorless, flammable gas that has a distinct, pungent smell. Small amounts of formaldehyde are naturally produced by plants, animals, …

Sep 20, 2013 · Formaldehyde is a naturally found chemical in numerous foods and is produced in small levels by the human body. People are primarily exposed to formaldehyde by breathing contaminated …