FORMALDEHYDE (methanal) is widely employed in industry. Formaldehyde is also used as a disinfectant and is a commonly utilized tissue fixative and embalming agent. Formaldehyde is naturally present in all tissues and body fluids. Recently it has been shown that some cancer types exhibit elevated formaldehyde levels. Amiscience's Formaldehyde Assay Kit provides a convenient fluorimetric means to measure formaldehyde. In the assay, formaldehyde is derivatized with acetoacetanilide in the presence of ammonia. The resulting fluorescent product is then quantified using FluoroQuik handheld fluorometer (ex/em =360nm/460nm).