You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4aR,5aS,8aS,13aS,15aS,15bR)-2,4a,5,5a,6,7,8,13a,15,15a,15b,16-dodecahydro4,6-methanoindolo[3,2,1-ij]oxepino[2,3,4-de]pyrrolo[2,3-h]quinolin-6-ium-14-one;perchlorate;hydrate The above is the IUPAC name of a molecule. Write its molecular formula.
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