You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-chloro-2-(3-methyl-6-prop-1-en-2-ylcyclohex-2-en-1-yl)benzene-1,3-diol by IUPAC nomenclature, provide its molecular formula.
user
C16H19ClO2
assistant