You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 7-[[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-nitrosoacetyl]amino]-3-[2-[2-(diaminomethylideneamino)ethylsulfanylmethyl]pyridin-3-yl]sulfanyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C20H22N10O5S4
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