4-Hexen-3-one2497-21-4100 % similar 2-Octen-4-one4643-27-054 % similar 1-Penten-3-one1629-58-950 % similar 2-Butenoyl chloride10487-71-542 % similar trans-Crotonyl chloride625-35-442 % similar 1-(4-Methoxyphenyl)-1-penten-3-one104-27-840 % similar Ethyl trans-crotonate623-70-139 % similar 3-Penten-2-one625-33-238 % similar 5-Methyl-2-hepten-4-one81925-81-737 % similar 3,4-Hexanedione4437-51-836 % similar 3-Pentanone96-22-036 % similar Crotonic acid107-93-736 % similar Crotonic acid3724-65-036 % similar Crotonic anhydride623-68-736 % similar 3,6-Octanedione2955-65-933 % similar Calcium propanoate4075-81-433 % similar Methyl E-crotonate623-43-833 % similar 3,5-Heptanedione7424-54-633 % similar Butanone78-93-333 % similar Ethylacrolein922-63-433 % similar