7-(dimethylamino)-1-methylphenoxazin-3-one

2,6-二羟基-4-甲基苯乙酮

2,4-diacetyl-5-methyl-resorcinol

1-(2,4-二羟基-6-甲基苯基)乙酮

1,7-dihydroxy-3-methylxanthen-9-one