You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3aR,4S,6S,7aR)-2,2-dimethyl-4-[(E)-2-phenylethenyl]-6-prop-2-enyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24O3
assistant