8-acetyl-6-ethyl-7-hydroxy-4-methyl coumarin

2-acetyl-4-ethyl-1,3-cyclo-hexanedione

6-乙基-7-羟基-4-甲基-2H-色烯-2-酮

7-acetoxy-6-ethyl-4-methylcoumarin

4-乙基间苯二酚