(E)-2-Hexenoic acid 4-methylphenyl ester
(E)-2-Hexenoic acid 4-methylphenyl ester ??
??
(E)-2-Hexenoic acid 4-methylphenyl ester C??? ??, ??, ??
(E)-2-Hexenoic acid 4-methylphenyl ester ?? ?? ? ???
???
?? ??
(E)-2-Hexenoic acid 4-methylphenyl ester ?? ??
???( 0)?? ??