4,6-二甲基阔马酸甲酯

9,9-二蒽-10,10-9H,9H-二酮

methyl 10-hydroxy-12-methyl-9,10-dihydro-9,10-ethenoanthracene-11-carboxylate

2-methoxy-4-methyl-2H-furan-5-one

2-ethyl-5-methyl-4H-pyrazol-3-one