| http://www.w3.org/ns/prov#value | - lglutaronitrile, ketones including 2-acetylbutyrolactone, cyclopentanone, cyclic esters including beta-propiolactone, gamma-butyrolactone, gamma-valerolactone, carbonates including propylene carbonate, ethylene carbonate, and homogenous mixtures of the same.
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