7-hydroxy-4-methyl-3-propan-2-ylchromen-2-one

3-butyl-7-hydroxy-4-methylchromen-2-one

7-amino-2-chlorophenoxazin-3-one

1,2-bis(2,4-dihydroxyphenyl)ethane-1,2-dione

2-甲基-6-羟基苯并呋喃