(2R)-2,4-dihydroxy-3,3-dimethylbutanoate (2R)-2,4-dihydroxy-3,3-dimethyl-butanoate (2R)-2,4-dihydroxy-3,3-dimethyl-butyrate pantoate 2,4-DIHYDROXY-3,3-DIMETHYL-BUTYRATE CHEBI:15980