7-hydroxy-4-methyl-2-oxochromene-6-sulfonyl chloride

7-hydroxy-4-methyl-2-oxo-2H-chromene-6-sulfonic acid

4-甲基-7-(2-氧代环己基氧基)-色烯-2-酮

8-acetyl-7-hydroxy-4-methyl-6-prop-2-enylchromen-2-one

2-oxo-[1]benzofuro[3,2-g]chromene-4-carbaldehyde