3-Methylpentan-2-one565-61-730 % similar 2-Methyl-3-hexanone7379-12-630 % similar 3,5-Dimethyl-1,2-cyclopentanedione13494-07-030 % similar 2,6-Dimethyl-3,5-heptanedione18362-64-630 % similar 2-Methyl-1,3-cyclopentanedione765-69-530 % similar