Synonyms: Decanoicacid,1,1a,1b,4,4a,5,7a,7b,8,9-decahydro-4a,7b-dihydroxy-3-(hydroxymethyl)-1,1,6,8-tetramethyl-5-oxo-9aH-cyclopropa[3,4]benz[1,2-e]azulene-9,9a-diylester, [1aR-(1aa,1bb,4ab,7aa,7ba,8a,9b,9aa)]-; Decanoic acid, 9,9a-diesterwith 1,1aa,1bb,4,4a,7aa,7b,8,9,9a-decahydro-4ab,7ba,9b,9aa-tetrahydroxy-3-(hydroxymethyl)-1,1,6,8a-tetramethyl-5H-cyclopropa[3,4]benz[1,2-e]azulen-5-one,(+)- (8CI); 5H-Cyclopropa[3,4]benz[1,2-e]azulen-5-one, 1,1aa,1bb,4,4a,7aa,7b,8,9,9a-decahydro-4ab,7ba,9b,9aa-tetrahydroxy-3-(hydroxymethyl)-1,1,6,8a-tetramethyl-, 9,9a-didecanoate,(+)- (8CI); 9aH-Cyclopropa[3,4]benz[1,2-e]azulene, decanoic acid deriv.; 4b-Phorbol 12,13-didecanoate; 4b-Phorbol didecanoate; PDD;Phorbol 12,13-dicaprinate; Phorbol 12,13-didecanoate; Phorbol dicaprate;Phorbol didecanoate