66902-86-1 AMMONIUM, DIBENZYL((3-HYDROXY-2-PYRIDYL)METHYL)METHYL-, BROMIDE, DIMETHYLCARBAMA Ammonium, dibenzyl((3-hydroxy-2-pyridyl)methyl)methyl-, bromide, dimethylcarbamate (ester) Dibenzyl((3-hydroxy-2-pyridyl)methyl)methylammonium bromide dimethylcarbamate (ester) Ro 2-2227