66967-94-0 AMMONIUM, ((3-HYDROXY-2-PYRIDYL)METHYL)TRIMETHYL-, BROMIDE, N-METHYL-N-(p-TOLYL) Ammonium, ((3-hydroxy-2-pyridyl)methyl)trimethyl-, bromide, N-methyl-N-(p-tolyl)carbamate (ester) Ro 2-2007