- C11H18O2
- Undecolic Un`de*col"ic, a. [Undecylenic + propiolic.] (Chem.) Pertaining to, or designating, an acid, {C11H18O2}, of the propiolic acid series, obtained indirectly from undecylenic acid as a white crystalline substance. [1913 Webster]
The Collaborative International Dictionary of English. 2000.