64051-18-9 AMMONIUM, (m-HYDROXYPHENYL)TRIMETHYL-, METHYLSULFATE, CARBAMATE AR-11 Ammonium, ((m-carbamoyloxy)phenyl)trimethyl-, methylsulfate Carbamic acid, (m-trimethylammonio)phenyl ester, methylsulfate Carbamic acid, 3-dimethylaminophenyl ester, methosulfate Carbamic ester of 3-oxyphenyltrimethylammonium methylsulfate