1-(2,2-Dichloroethenyl)-2-pyrrolidinone 2-Pyrrolidinone, 1-(2,2-dichloroethenyl)- 37001-19-7 5-21-06-00330 (Beilstein Handbook Reference) BRN 1525549 N-Dichlorovinyllactam beta,beta-Dichlorovinylpyrrolidinone beta,beta-Dichlorovinylpyrrolidone