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Can you give the molecular formula of the molecule 9-[17-(6-aminopurin-9-yl)-9,18-difluoro-3-hydroxy-12-oxo-12-sulfanyl-3-sulfanylidene-2,7,11,16-tetraoxa-4,13-diaza-3lambda5,12lambda5-diphosphatricyclo[13.3.0.06,10]octadecan-8-yl]purin-6-amine ?
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C20H24F2N12O6P2S2
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