An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Inert Reassessment Document for Valeric Acid, normal - CAS No. 109-52-4

Valeric acid is used as a stenching agent or odorant, with a limit of not more than 2% in pesticide formulations. Valeric acid is also used as an intermediate in the manufacture of flavors and perfumes, ester type lubricants, plasticizers and vinyl stabilizers.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.