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N-Cyclohexyl-2-pyrrolidone6837-24-7100 % similar (αS)-α-Ethyl-2-oxo-1-pyrrolidineacetic acid102849-49-043 % similar Levetiracetam acid103833-72-343 % similar N-Methylcaprolactam2556-73-242 % similar N-Methyl-2-pyrrolidone872-50-441 % similar Levetiracetam102767-28-241 % similar Alpha-ethyl-2-oxo-1-Pyrrolidineacetamide33996-58-641 % similar N-Octylpyrrolidone2687-94-738 % similar N-Dodecyl-2-pyrrolidone2687-96-938 % similar N-(Hydroxymethyl)-2-pyrrolidone15438-71-838 % similar N-Cyclohexylmaleimide1631-25-038 % similar 1-(2-Oxoazepane-1-carbonyl)azepan-2-one19494-73-638 % similar Dithiodicaprolactam23847-08-738 % similar N-Ethyl-2-pyrrolidone2687-91-438 % similar 1-Acetyl-2-pyrrolidone932-17-238 % similar 1-(Trimethylsilyl)-2-pyrrolidinone14468-90-736 % similar 1-(2-Hydroxyethyl)-2-pyrrolidinone3445-11-236 % similar N-Butyl-2-pyrrolidone3470-98-236 % similar 1-(3-Hydroxypropyl)pyrrolidin-2-one62012-15-136 % similar 1-(3-Aminopropyl)-2-pyrrolidinone7663-77-636 % similar