51212-98-7 [8-(acetyloxy)-3-methylidene-2,6-dioxo-2,3,3a,4,8,9,10,12a-octahydro-4,7-(metheno)furo[3,2-c]oxacycloundecin-11(6H)-yl]methyl acetate 212205-81-7 Butanedioic acid, 2-hexadecyl-3-(hexadecylthio)-,1-[2,2,3,3-tetrafluoro-3-[1,1,2,2,3,3-hexafluoro-3-[1,1,2,2,3,3-hexafluoro-3-[(undecafluoropentyl)oxy]propoxy]propoxy]propyl] ester