5H-Cyclopropa(3,4)benz(1,2-e)azulen-5-one, 1,1a-beta,1b-alpha,4,4a,7a-beta,8,9,9a-decahydro-4a-alpha,7b-beta,9-alpha,9a-beta-tetrahydroxy-3-(hydroxymethyl)-1,1,6,8-beta-tetramethyl-, 9a-decanoate (S)-(+) 9-(2-methylbutyrate) 63040-43-7 Phorbol caprate, (+)-(S)-2-methylbutyrate Phorbol monodecanoate (S)-(+)-mono(2-methylbutyrate)