Synonyms: AR-21;Ethylcarbamic ester of m-oxyphenyltrimethylammonium methylsulfate;Ammonium, (3-(N-ethylcarbamoyloxy)phenyl)trimethyl-, methylsulfate;Carbamic acid, N-ethyl-, 3-dimethylaminophenyl ester, methosulfate;AMMONIUM, (m-HYDROXYPHENYL)TRIMETHYL-, METHYLSULFATE, ETHYLCARBAMATE;Carbamic acid, N-ethyl-, 3-(trimethylammonio)phenyl ester, methylsulfate;64051-20-3;AC1L2HDQ;LS-18478;[3-(ethylcarbamoyloxy)phenyl]-trimethylazanium; methyl sulfate;3-[(ethylcarbamoyl)oxy]-N,N,N-trimethylanilinium methyl sulfate