1-alpha-H,5-alpha-H-Tropanium, 4,4'-biphenylenebis(3-beta-hydroxy-8-methyl-, dibromide, 2-methyl-2-butenoate (ester) 379-84-0 Biphenylene-(4,4')-bis-methyl-(3-beta-tigloyloxy)-tropaniumbromid [German] SM 152