You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-heptadecanoyloxy-3-[(7Z,9Z,11Z,13Z)-hexadeca-7,9,11,13-tetraenoyl]oxypropyl] (5Z,8Z,11Z)-icosa-5,8,11-trienoate into its molecular formula.
user
C56H94O6
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