1-Penten-3-one, 1-(1,3-benzodioxol-5-yl)-4-methyl- 1-Penten-3-one, 4-methyl-1-(3,4-methylenedioxyphenyl)- 2726-44-5 4-Methyl-1-(3,4-methylenedioxyphenyl)-1-penten-3-one 5-19-04-00344 (Beilstein Handbook Reference) BRN 0015219