1,1'-(2-Butynylene)dipyrrolidine dihydrochloride 1,1'-But-2-ynylenedipyrrolidinium dichloride 300-68-5 EINECS 206-097-8 Pyrrolidine, 1,1'-(2-butyne-1,4-diyl)bis-, dihydrochloride (9CI) Pyrrolidine, 1,1'-(2-butynylene)di-, dihydrochloride Tremorine dichlorohydrate Tremorine dihydrochloride