You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [2-[(9Z,12Z)-nonadeca-9,12-dienoyl]oxy-3-[(Z)-nonadec-9-enoyl]oxypropyl] (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate into molecular formula.
user
C61H104O6
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