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 (3S,6S,7R,8S,11R,12R,15S,16R,19R,21R)-8,19-dihydroxy-3,7,11,16,20,20-hexamethylpentacyclo[13.8.0.03,12.06,11.016,21]tricos-1(23)-ene-7-carboxylic acid .
user
C30H48O4
assistant