4-Hydroxybenzoic acid 5-hexenyl ester
4-Hydroxybenzoic acid 5-hexenyl ester ??
??
4-Hydroxybenzoic acid 5-hexenyl ester C??? ??, ??, ??
4-Hydroxybenzoic acid 5-hexenyl ester ?? ?? ? ???
???
?? ??
4-Hydroxybenzoic acid 5-hexenyl ester ?? ??
???( 0)?? ??