Vanillic acid (C8H8O4) is a phenolic acid found in some forms of vanilla and many other plant extracts. Applications for the acid include use as a flavoring and scent agent, and it is an intermediate in the production of vanillin from ferulic acid.
Vanillic acid is used as a flavoring agent in food. It acts as an intermediate in the production of vanillin from ferulic acid. Further, it is used in wine and vinegar. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio.