( )-Pinnatoxin A 160759-36-4 19H-11,15:15,18:18,22:24,28:24,29-Pentaepoxy-1H-benzo(2,3)cycloheptacos(1,2-b)azepine-31-carboxylic acid, 2,3,4,6,7,8,9,10,11,12,13,14,16,17,20,21,22,23,25,26,27,28,29,29a,32,33-hexacosahydro-14,27-dihydroxy-2,3,14,26-tetramethyl-9-methylene-, (2S,3R,11S,14R,15R,18R,22R,24R,26R,27R,28R,29S,29aS,33aR)- 19H-11,15:15,18:18,22:24,28:24,29-Pentaepoxy-1H-benzo(2,3)cycloheptacos(1,2-b)azepine-31-carboxylic acid, 2,3,4,6,7,8,9,10,11,12,13,14,16,17,20,21,22,23,25,26,27,28,29,29a,32,33-hexacosahydro-14,27-dihydroxy-2,3,14,26-tetramethyl-9-methylene-, (2R*,3R*,11S*,14S*,15R*,18R*,22S*,24R*,26S*,27R*,28S*,29R*,29aR*,33aS*)- Pinnatoxin A