You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [3-octadecanoyloxy-2-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxypropyl] (12Z,15Z,18Z,21Z)-tetracosa-12,15,18,21-tetraenoate into its molecular formula.
user
C63H104O6
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