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What is the molecular formula of the molecule 1-[(1R)-1-[[(2S,3R,11bS)-3-ethyl-9,10-dimethoxy-2,3,4,6,7,11b-hexahydro-1H-benzo[a]quinolizin-2-yl]methyl]-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl]-2-[bis(2-chloroethyl)amino]ethanone ?
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C35H49Cl2N3O5
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