castalin

Also known as 12H-8,17,21-(Epoxyethanylylidyne)-4,7-methano-5H-dibenzo[h,o][1,6]dioxacycloheptadecin, neovescalin deriv., Neovescalin, intramol. 25,17-ester, (15β)-, 12H-8,17,21-(Epoxyethanylylidyne)-4,7-methano-5H-dibenzo[h,o][1,6]dioxacycloheptadecin-5,12,23-trione, 7,8,9,10-tetrahydro-1,2,3,9,14,15,16,18,19,20,25-undecahydroxy-10-(hydroxymethyl)-

Castalin is an ellagitannin. It can be found in oak wood and in Melaleuca quinquenervia leaves.