(E)-3-((2,4-Dimethoxyphenyl)methylene)-3,4,5,6-tetrahydro-2,3'-bipyridine dihydrochloride 156223-05-1 2,3'-Bipyridine, 3-((2,4-dimethoxyphenyl)methylene)-3,4,5,6-tetrahydro-, dihydrochloride, (E)- 2,3'-Bipyridine, 3-((2,4-dimethoxyphenyl)methylene)-3,4,5,6-tetrahydro-dihydrochloride, (E)- 3-(2,4-dimethoxybenzylidene)anabaseine DMXBA Gts 21 Gts-21