1-Cyanomethylpyrrolidine 1-Pyrrolidineacetonitrile 29134-29-0 5-20-01-00344 (Beilstein Handbook Reference) AI3-23764 BRN 0106157 EINECS 249-463-2 N-Pyrrolidinoacetonitrile NSC 26714 Pyrrolidine-1-acetonitrile Pyrrolidinoacetonitrile