64051-16-7 AMMONIUM, (m-HYDROXYPHENYL)TRIMETHYL-, METHYLSULFATE, BENZYLCARBAMATE AR-23 Ammonium, (3-(N-benzylcarbamoyloxy)phenyl)trimethyl-, methylsulfate Benzylcarbamic ester of 3-oxyphenyltrimethylammonium methylsulfate Carbamic acid, N-benzyl-, 3-(trimethylammonio)phenyl ester, methylsulfate