Undecylenic a. : Pertaining to, or designating, an acid C11H20O2, homologous with acrylic acid, and obtained as a white crystalline substance by the distillation of castor oil.

Example:
What is Undecylenic Acid and What does it do?

Taxonomy
CASTOR OIL DERIVATIVES, AKSHAY, CHEMICALS, chemical manufacturer, India, Manufacturer India, HEPTALDEHYDE, UNDECYLENIC ACID, DCO, FATTY ACIDS, Castor oil, Rubber Manufacturer, CENTRAL INDIA, arch chemicals, aromatic chemicals, ciba specialty chemicals, coating chemicals, coconut.

Defination from the web:
UNDECYLENIC ACID, DCO FATTY ACIDS ETC ... AFTER SEVERAL YEARS OF RESEARCH WE HAVE DEVELOPED A UNIQUE PROCESS OF CASTOR OIL CRACKING TO GIVE BEST QUALITY PRODUCTS. ...