出典:Wiktionary
出典:『Wiktionary』 (2016/11/19 06:41 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/27 14:04 UTC 版)
Vanillic acid (4-hydroxy-3-methoxybenzoic acid) is a benzoic acid derivative used as a flavoring agent. It is an oxidized form of vanillin. It is also an intermediate in the production of vanillin from ferulic acid.