2-cyclopenten-1-one, 3,5-dimethyl-2-pentyl- 3,5-dimethyl-2-pentylcyclopent-2-en-1-one InChI=1/C12H20O/c1-4-5-6-7-11-9(2)8-10(3)12(11)13/h10H,4-8H2,1-3H