You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule [(2R,3S)-3-[[(2S)-2-[[(2S)-2-acetamido-3-[3-(8-phenyloctyl)imidazol-4-yl]propanoyl]amino]-3-hydroxypropanoyl]amino]-4-amino-4-oxobutan-2-yl]oxy-trihydroxyphosphanium ?
user
C29H46N6O9P+
assistant