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What is the molecular formula of the compound with this IUPAC name 2,2,5,5,8,8,11,11,14,14-decamethyl-1,4,7,10,13-pentaoxa-2,5,8,11,14-pentasilacyclopentadecane;2,2,5,5,8,8,11,11,14,14,17,17-dodecamethyl-1,4,7,10,13,16-hexaoxa-2,5,8,11,14,17-hexasilacyclooctadecane;2,2,4,4,6,6,9,9,11,11,14,14-dodecamethyl-1,3,5,8,10,13-hexaoxa-2,4,6,9,11,14-hexasilacyclopentadecane;2,2,4,4,7,7,9,9,12,12,14,14-dodecamethyl-1,3,6,8,11,13-hexaoxa-2,4,7,9,12,14-hexasilacyclopentadecane;2,2,5,5,8,8-hexamethyl-1,4,7,2,5,8-trioxatrisilonane;2,2,5,5,8,8,11,11-octamethyl-1,4,7,10-tetraoxa-2,5,8,11-tetrasilacyclododecane ?
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C84H228O30Si30
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