Stable. Combustible. Incompatible with strong oxidizing agents, aluminum. (http://physchem.ox.ac.uk/MSDS/OL/oleic_acid.html)

 ***Hey, wait! Isn't aluminum already in cigarettes?!?***

Oleic acid is a fatty acid found in animal and vegetable oils.  It is called a mono-unsaturated fatty acid because of the single double bond between the carbons.  It's physical properties are determined by the number, geometry, and position of this double bond and the degree of unsaturation.