(2-butyl-4,5-dimethoxynaphthalen-1-yl) acetate

5-butyl-1-benzofuran-4,7-dione

(2-butyl-4-methoxy-5,7,8-trimethylnaphthalen-1-yl) acetate

(2-butyl-4-methoxy-5,8-dimethylnaphthalen-1-yl) acetate

2-hex-1-ynylphenol