30272-17-4 7,9a-Methano-9aH-cyclopenta(b)heptalene-2,8,11,11a,12(1H)-pentol, dodecahydro-1,1,8-trimethyl-4-methylene-, 12-acetate, (2S,3aS,4aS,7R,4aR,8R,9aS,11R,12R)-(-)- BRN 2227742 Grayanotoxin IV delta(sup-10(18))-Acetylandromedenol