64050-77-7 AMMONIUM, (m-HYDROXYPHENYL)TRIMETHYL-, METHYLSULFATE, METHYLCARBAMATE AR-13 Ammonium, (3-(N-methylcarbamoyloxy)phenyl)trimethyl-, methylsulfate Carbamic acid, N-methyl-, (3-(trimethylammonio)phenyl) ester, methylsulfate Carbamic acid, N-methyl-, 3-dimethylaminophenyl ester, methosulfate Methylcarbamic ester of 3-oxyphenyltrimethylammonium methylsulfate