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system
What is the molecular formula of the molecule 2-[2-methyl-3-(4-oxobutanoyloxy)-2-(4-oxobutanoyloxymethyl)propanoyl]oxyethyl 2-methyl-3-(4-oxobutanoyloxy)-2-(4-oxobutanoyloxymethyl)propanoate;yttrium ?
user
C28H34O16Y4-4
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