You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[hydroxy-[3-octacosoxy-2-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyl]oxypropoxy]phosphoryl]oxyethyl-trimethylazanium .
user
C54H105NO7P+
assistant