2-Dodecenal20407-84-531 % similar 2-Nonenal2463-53-831 % similar 2-Undecenal2463-77-631 % similar (2E)-Decenal3913-81-331 % similar (E)-2-Undecenal53448-07-031 % similar cis-2-Butene590-18-131 % similar 2,4-Nonadienal5910-87-231 % similar trans-2-Butene624-64-631 % similar Nona-2,4-dienal6750-03-431 % similar 3-Methyl-2-butenal107-86-830 % similar