3817419 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3817419 > 2 > ChemIDplus > 153954473 > 153954-47-3 2-Pyrrolidinone, 1-ethenyl-3-ethylidene-, (3E)- > 153954-47-3 > 153954473 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=153954473 $$$$