You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[hydroxy-[(2S,3R,4E,8Z)-3-hydroxy-2-[[(5S,6S,7E,9E,11Z,13E,15S)-5,6,15-trihydroxyicosa-7,9,11,13-tetraenoyl]amino]heptadeca-4,8-dienoxy]phosphoryl]oxyethyl-trimethylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H76N2O9P+
assistant