4-.beta.-O-Methyl phorbol myristate acetate 4-O-Methyl-12-O-tetradecanoylphorbol 13-acetate 4-O-Methyl-12-tetradecanoylphorbol 13-acetate 4-O-Methyl-TPA 4-O-Methylphorbol 12-myristate 13-acetate 4.b.-O-Methyl phorbol myristate OAc 57716-89-9 AIDS-001976 AIDS001976 Tetradecanoic acid, (1aR,1bS,4aR,7aS,7bS,8R,9R,9aS)-9a-(acetyloxy)-1a,1b,4,4a,5,7a,7b,8,9,9a-decahydro-7b-hydroxy-3-(hydroxymethyl)-4a-methoxy-1,1,6,8-tetramethyl-5-oxo-1H-cyclopropa[3,4]benz[1,2-e]azulen-9-yl ester