You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named copper;3-[[4-(3-azanidylpropylimino)-4-(7-methyl-2,5-dioxopyrano[3,2-c]pyran-3-yl)butan-2-ylidene]amino]propylazanide;dichlorotin(2+) is given. What is its corresponding molecular formula?
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C19H24Cl2CuN4O4Sn+2
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