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 2-[3-amino-6-(2-hydroxyphenyl)pyridazin-4-yl]-1,3,4,5,6,7,8,8a-octahydroisoquinolin-4a-ol .
user
C19H24N4O2
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