1 H3M (5r)-5-hydroxy-3-methylfuran-2(5h)-one 1.000 2 VTY (5s)-5-hydroxy-3-methylfuran-2(5h)-one 1.000 3 GBL Gamma-butyrolactone 0.750 4 7DV 2-methylbenzene-1,4-diol 0.700