66941-33-1 AMMONIUM, (m-(1,4-DIHYDRO-3,5-DIMETHOXYCARBONYL-2,6-DIMETHYL-4-PYRIDYL)PHENYL)TR Ammonium, (m-(1,4-dihydro-3,5-dimethoxycarbonyl-2,6-dimethyl-4-pyridyl)phenyl)trimethyl-, iodide