Undecanoic acid (Standard) is the standard substance of Undecanoic acid, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Undecanoic acid (Hendecanoic acid) is a monocarboxylic acid with antimycotic property. Undecanoic acid inhibits the production of exocellular keratinase, lipase and the biosynthesis of several phospholipids in T. rubrum.