107140-30-7 2,10,12,16,18-Nonadecapentaenoic acid, 19-(3,6-dihydro-3-methyl-6-oxo-2H-pyran-2-yl)-6-hydroxy-9-(hydroxymethyl)-3,5,7,11,15,17-hexamethyl-8-oxo-,(2E,10E,12E,16Z,18E)- AIDS-058216 AIDS058216 Kazusamycin B PD 124895