1,1'-Ethylenebis(1-methyl-2-(3-pyridyl)pyrrolidinium) bromide 5392-30-3 NSC 11518 NSC 3284 Pyrrolidinium, 1,1'-ethylenebis(1-methyl-2-(3-pyridyl)-, bromide Pyrrolidinium, 1,1'-ethylenebis(1-methyl-2-(3-pyridyl)-, dibromide (8CI)