a-acetylbutyrolactone

α-acetylbutyrolactone

[¦al·fə ə‚sed·əl¦byüd·ə·rō′lak·tōn]
(organic chemistry)
C6H8O3 A liquid with an esterlike odor; soluble in water; used in the synthesis of 3,4-disubstituted pyridines.