An unknown compound X has the empirical formula C3H6O and a molecular ion in its mass spectrum at 116. Compound X shows no IR absorption at 3200-3600 cm-1 but shows a peak at 1700 cm-1. The 1H NMR spectral data of X is shown below. What is the structure of compound X? 
Definitions:
Return On Assets
A performance metric that measures the efficiency of a company in generating profit from its assets.
Return On Equity
Return on equity (ROE) measures a corporation's profitability by revealing how much profit a company generates with the money shareholders have invested.
Net Income
The company's net profit, calculated by subtracting all costs and taxes from its total income.
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