Keywords: Pyrrolidin-2-one 200.svg validSVG Structure of pyrrolidin-2-one Own 2014-05-14 Emeldir <span class signature-talk ></span> Chemical structure verified https //upload wikimedia org/wikipedia/commons/9/92/Pyrrolidin-2-one_200 svg 1S/C4H7NO/c6-4-2-1-3-5-4/h1-3H2 H 5 6 HNJBEVLQSNELDL-UHFFFAOYSA-N 616-45-5 PD-chem Pyrrolidones |