Synonyms: Cuprate(2-), ((3S,4S,21R)-21-carboxy-9-ethenyl-14-ethyl-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoato(4-)-kappaN23,kappaN24,kappaN25,kappaN26)-, potassium (1:2), (SP-4-2)-;Cuprate(2-), ((3S,4S,21R)-21-carboxy-9-ethenyl-14-ethyl-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoato(4-)-kappaN23,kappaN24,kappaN25,kappaN26)-, dipotassium, (SP-4-2)-;Dipotassium (3S-(3alpha,4beta,21beta))-(21-carboxy-14-ethyl-4,8,13,18-tetramethyl-20-oxo-9-vinylphorbine-3-propionato(4-)-N23,N24,N25,N26)cuprate(2-);copper(2+) potassium 3-(2-carboxylatoethyl)-9-ethenyl-14-ethyl-4,8,13,18-tetramethyl-20-oxido-23,25-didehydro-4,21-dihydro-3H-phorbin-23-ide-21-carboxylate (1:2:1)