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system
Please write the molecular formula of the molecule 5-(10-naphtho[2,3-b][1]benzofuran-2-ylanthracen-9-yl)-17-(10-phenylanthracen-9-yl)-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15(20),16,18-nonaene;5,10,12,17-tetrakis(10-phenylanthracen-9-yl)-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9(21),10,12,15(20),16,18-nonaene;5,11,17-tris(10-phenylanthracen-9-yl)-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15(20),16,18-nonaene .
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C244H145B3O7
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