. "C6H9O3"^^ . "A 2-oxo monocarboxylic acid anion that is the conjugate base of 3-methyl-2-oxovaleric acid, arising from deprotonation of the carboxy group; major species at pH 7.3."^^ . . . . . . . "3-methyl-2-oxovalerate"^^ . "alpha-keto-beta-methylvalerate"^^ . "2-keto-3-methylvalerate"^^ . "3-Methyl-2-oxopentanoate"^^ . "3-Methyl-2-oxovalerate"^^ . "3-methyl-2-oxopentanoate"^^ . "alpha-oxo-beta-methylvalerate"^^ . "2-Oxo-3-methylpentanoate"^^ . . "129.134"^^ . "3-methyl-2-oxovalerate"^^ . .