Any lignan condensed with a 2-aryl-1-benzopyran skeleton and its substituted derivatives.
| Member | Definition | Role |
|---|
| 2,3-dehydrosilybin | | 2,3-Dehydrosilybin |
| silybin | A flavonolignan isolated from milk thistle, Silybum marianum, that has been shown to exhibit antioxidant and antineoplastic activities. | silibinin |
| silychristin | A flavonolignan isolated from Silybum marianum and has been shown to exhibit inhibitory activities against lipoxygenase and prostaglandin synthetase. | silychristin |
| silymarin | | 3,5,7-trihydroxy-2-[3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-3,4-dihydro-2H-1-benzopyran-4-one |
| tricin 4'-o-(threo-beta-guaiacylglyceryl) ether | A flavonolignan isolated from the stems of Sinocalamus affinis. | (-)-(7''S,8''S)-4'',5,7-trihydroxy-3',3'',5'-trimethoxy-4',8''-oxyflavonolignan-7'',9''-diol |