1-(N-(1-Methyl-2-pyrrolidine)thiocarbamidomethyl)-2-pyrrolidone 1-Pyrrolidineethanethioamide, N-(1-methyl-2-pyrrolidinylidene)-2-oxo- 126647-17-4 BRN 4257478 N-(1-Methyl-2-pyrrolidinylidene)-2-oxo-1-pyrrolidineethanethioamide