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Hexadecanal is an
organic compound In chemistry, organic compounds are generally any chemical compounds that contain carbon- hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. Th ...
with the
chemical formula In chemistry, a chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, ...
C16H32O.


In biology

Hexadecanal is found in human skin, saliva, and feces. It has a calming effect on mice. A 2017 study found that
neurotypical Neurotypical (NT, an abbreviation of neurologically typical) is a neologism widely used in the neurodiversity movement as a label for non- neurodivergent people. That is, anyone who has a typical neurotype, so excluding autistic people, those w ...
men demonstrate an increase in
electrodermal activity Electrodermal activity (EDA) is the property of the human body that causes continuous variation in the electrical characteristics of the skin. Historically, EDA has also been known as skin conductance, galvanic skin response (GSR), electrodermal ...
when exposed to subliminal levels of hexadecanal while men with
autism spectrum disorder The autism spectrum, often referred to as just autism or in the context of a professional diagnosis autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a neurodevelopmental condition (or conditions) characterized by difficulti ...
do not. In 2021, inhalation of hexadecanal was found to reduce
aggression Aggression is overt or covert, often harmful, social interaction with the intention of inflicting damage or other harm upon another individual; although it can be channeled into creative and practical outlets for some. It may occur either reacti ...
in men but to trigger aggression in women. Hexadecanal is one of the most abundant substances emitted by human babies from their heads, which may be an evolutionary survival mechanism to induce mothers to defend the baby and fathers to not attack it. But it is not yet known whether the amount of hexadecanal emitted by humans is sufficient to affect other humans.


References

Alkanals {{organic-compound-stub