172927-62-7 BUTANOIC ACID ESTERS,(1AR,3S,3AR,6R,6AR,7S,- 7AS,8S,9R,11S,11AR,12R,12AR)-7,8,11,12-TETRAKIS( ACETYLOXY)-3-CHLOROHEXADECAHYDRO-6AHYDROXY- 6,8,11A-TRIMETHYL-2-METHYLENE-5- OXOBENZO[4,5]OXIRENO[7,8]CYCLODECA[1,2-B]FURAN- 9-YL ESTER 171554-76-0 4,8,21,23,25,38,42-Heptaoxa-20,22,24,26-tetrasilapentatetracontane-1,2,6,40,44,45-hexol, 20,20,22,22,24,24,26,26-octamethyl-