193558-92-8 2,5,8,11,14-Pentaoxapentadecane,1,15-bis(4-methoxyphenyl)-3,4,12,13-tetraphenyl-, (3S,4S,12S,13S)- 62998-96-3 Octadecanoic acid,8-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5,11-bis(1-methyl-2-oxopropoxy)-5,11-dioxido-4,6,10,12-tetraoxa-5,11-diphosphapentadecane-1,2,14,15-tetrayl ester