The IUPAC name should give the stereochemistry (2S if I'm not mistaken). Why is there an 8 in 7,4'-di-O-n-pentyl-8-isoxanthohumol, & why include this list of derivatives? You can make an unlimited number of derivatives. Is there something special about these derivatives?
To address the previous comment, the structure shown (I have not checked the original reference to verify it) is a flavonoid, not a chalcone. 18.104.22.168 (talk) 07:15, 17 October 2014 (UTC)