64050-83-5 AMMONIUM, (m-HYDROXYPHENYL)TRIMETHYL-, METHYLSULFATE, PHENYLCARBAMATE AR-25 Ammonium, (3-(N-phenylcarbamoyloxy)phenyl)trimethyl-, methylsulfate Carbamic acid, N-phenyl-, 3-(trimethylammonio)phenyl ester, methylsulfate Phenylcarbamic ester of 3-oxyphenyltrimethylammonium methylsulfate