66902-87-2 AMMONIUM, DIBUTYL((3-HYDROXY-2-PYRIDYL)METHYL)METHYL-, BROMIDE, DIMETHYLCARBAMAT Ammonium, dibutyl((3-hydroxy-2-pyridyl)methyl)methyl-, bromide, dimethylcarbamate (ester) Dibutyl((3-hydroxy-2-pyridyl)methyl)methylammonium bromide dimethylcarbamate (ester) Ro 2-2279