The molecule is a butan-4-olide that is dihydrofuran-2(3H)-one substituted by a hydroxy group at position 3 and two methyl groups at position 4 (the R-stereoisomer). It has a role as a Saccharomyces cerevisiae metabolite. It derives from a (R)-pantoic acid.
(3R)-3-hydroxy-4,4-dimethyloxolan-2-one