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 sulfur trioxide;25,26,27,28-tetrahydroxy-11-(hydroxymethyl)-23-[(E)-2-(1-phenylpyridin-1-ium-4-yl)ethenyl]pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaene-5-sulfonic acid .
user
C42H36NO11S2+
assistant