1910–1911
Britannica 11th
Encyclopaedia Britannica · 11th edition
VALERIC ACID, or VALERIANIC ACID, C4H9-CO2H, an organic acid belonging to the fatty acid series, which exists in four isomeric forms, one of which contains an asymmetric carbon atom and consequently occurs in two optically active modifications and one optically inactive modification. Ordinary valeric acid (baldrianic acid) is a mixture of isovaleric acid or isopropylaceticacid, (CH3)2CH-CH2-CO2H, and optically active methylethylacetic acid, (CH3) (C2H6)CH-CO2H, which occur free or as esters in the vegetable and ani…
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- Vol. 27, pp. 859-859