74203-53-5 AMMONIUM, DIETHYL((N-(3-HYDROXY-2-PYRIDYL)METHYL-N-PHENYLAMINO)ETHYL)METHYL-, BR Ammonium, diethyl((N-(3-hydroxy-2-pyridyl)methyl-N-phenylamino)ethyl)methyl-, bromide, dimethylcarbamate (ester), methanoate Ro 2-2267