1,4-Dipyrrolidine-2-butyne 1,4-Dipyrrolidino-2-butyne 1,4-Dipyrrolidinyl-2-butyne 2-Butyne, 1,4-bis(1-pyrrolidinyl)- 5-20-01-00421 (Beilstein Handbook Reference) 51-73-0 BRN 0006119 Biofermin Dipyrrolidine, 1,1'-(2-butynylene)- NSC 407428 Pyrrolidine, 1,1'-(2-butyne-1,4-diyl)bis- Pyrrolidine, 1,1'-(2-butynylene)di- TREMORINE Tremorin