You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(pyridin-3-ylmethylamino)-N-[2-(19,31,51-trihydroxy-18,22,25,28,32,50,54,57,62,63,64-undecazadecacyclo[23.18.13.411,39.12,5.17,10.140,43.012,17.033,38.044,49.158,61]tetrahexaconta-1(43),2,4,6,8,10(62),11(61),12,14,16,18,31,33,35,37,39(58),40(57),41,44,46,48,50,59-tricosaen-6-yl)phenyl]propanimidic acid by IUPAC nomenclature, provide its molecular formula.
user
C68H68N14O4
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