You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named cyclopropylmethyl-[(2S,3R,4S,6R)-2-[[(2R,3R,4S,5R,8R,9S,10S,11R,12R)-5-ethyl-3,4-dihydroxy-9-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-7-oxo-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-11-yl]oxy]-3-hydroxy-6-methyloxan-4-yl]-dimethylazanium by IUPAC nomenclature, provide its molecular formula.
user
C41H72NO12+
assistant