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What is the molecular formula of the compound with this IUPAC name 2,6-diazanidaspiro[3.3]heptane-1,3,5,7-tetrone;2-methyl-2-aza-6-azanidaspiro[3.3]heptane-1,3,5,7-tetrone;yttrium ?
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C11H3N4O8Y2-3
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