3-Methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)pent-3-en-2-one 3-Penten-2-one, 3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl) 3-Penten-2-one, 3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)- 65113-95-3 EINECS 265-450-4