4-hydroxy-5-methoxychromen-2-one

5-羟基-4-氧代-4H-色烯-2-羧酸

N-butyl-4-(4-propan-2-ylphenoxy)butan-1-amine

5-甲氧基-4-氧代-1,4-二氢萘-2-羧酸乙酯

5-methoxychromen-4-one