3-Azaniumyl-4,5-dihydroxy-6-((1-(8-hydroxy-1-oxo-3

1-oxo-3,4-dihydro-1H-2-benzopyran-3-carboxylic aci

7-Hydroxy-1H-2-benzopyran-1-one

3-(hydroxymethyl)-1H-isochromen-1-one

3,4-Dehydro-6-hydroxymellein

4,9-Dibromo-[1,2,5]thiadiazolo[3,4-g]quinoxaline

1-(2-Hydroxy-4-iodophenyl)ethanone

1-(2-Hydroxy-4-iodophenyl)ethanone

1-(2-Hydroxy-4-iodophenyl)ethanone

4-Hydroxy-7-iodo-2H-chromen-2-one

Tert-butyl 3-formylazetidine-1-carboxylate

Lignin