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2,2,3,3,16,16,17,17-octamethyl-5,14-diphenyl-4,15-dioxa-3,16-disilaoctadecane-8,11-dione
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2,2,3,3,17,17,18,18-octamethyl-5-phenyl-4,16-dioxa-3,17-disilanonadecane-8,11-dione
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5-ethyl-2,2,3,3,16,16,17,17-octamethyl-14-phenyl-4,15-dioxa-3,16-disilaoctadecane-8,11-dione
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