37558-16-0 Butanoic acid, 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-diyl ester, (1aR-(1a-alpha,1b-beta,4a-beta,7a-alpha,7b-alpha,8-alpha,9-beta,9a-alpha))- NSC 622507 PHORBOL 12,13-BUTYRATE Phorbol 12,13-dibutyrate Phorbol-12,13-dibutyrate