Phlorofucofuroeckol A is a

phlorotannin Phlorotannins are a type of tannins found in brown algae such as kelps and rockweeds or sargassacean species, and in a lower amount also in some red algae. Contrary to hydrolysable or condensed tannins, these compounds are oligomers of phlorogl ...

isolated from brown algae species such as ''

Eisenia bicyclis , sea oak is a species of kelp, of the brown algae, best known for its use in Japanese cuisine. Description ''Eisenia bicyclis'' is indigenous to temperate Pacific Ocean waters centered near Japan, although it is deliberately cultured elsewhe ...

'' (an edible seaweed called ''arame'' in Japan), ''

Ecklonia cava ''Ecklonia cava'' (or paddle weed, , ''noro-kajime''), is an edible marine brown alga species found in the ocean off Japan and Korea. It is used as an herbal remedy in the form of an extract called ''Seanol'', a polyphenolic extract, and ''Vento ...

'', ''

Ecklonia kurome ''Ecklonia kurome'' ( ja, 黑布 (kurome), zh, 鹅掌菜) is a brown alga species in the genus ''Ecklonia'' found in the Sea of Japan. The phlorotannins eckol, phlorofucofuroeckol A and 8,8'-bieckol can be found in ''Ecklonia kurome''. An ol ...

'' or ''

Ecklonia stolonifera ''Ecklonia stolonifera'' (Japanese: ツルアラメ, turuarame) is a brown alga species in the genus ''Ecklonia'' found in the Sea of Japan. It is an edible species traditionally eaten in Japan. Chemistry Phlorotannins ''Ecklonia stolonifer ...

''. The molecule possesses both the

dibenzo-1,4-dioxin Dibenzo-1,4-dioxin, also dibenzodioxin or dibenzo-''p''-dioxin (dibenzo-''para''-dioxin), is a polycyclic heterocyclic organic compound in which two benzene rings are connected by a 1,4-dioxin ring. Its molecular formula is C12H8O2. The two ox ...

and

dibenzofuran Dibenzofuran is a heterocyclic organic compound with the chemical structure shown at right. It is an aromatic compound that has two benzene rings fused to a central furan ring. All the numbered carbon atoms have a hydrogen atom bonded to each of th ...

elements.

References

Benzofuran ethers at the benzene ring Dibenzofurans Phlorotannins {{aromatic-stub