Retusin
Retusin  may refer to:
 Retusin (flavonol) (or quercetin-3,7,3',4'-tetramethyl ether, CAS number 1245-15-4)
 Retusin (isoflavone) (or 7,8-dihydroxy-4′-methoxyisoflavone, CAS number 37816-19-6)

External links
 Retusin on kanaya.naist.jp