You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-carboxy-3-[2-[(6E,9E)-dodeca-6,9-dienoyl]oxy-3-[(3E,6E,9E)-dodeca-3,6,9-trienoyl]oxypropoxy]propyl]-trimethylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C34H56NO7+
assistant