(2-Ethyl-5-hydroxyphenyl)trimethylammonium iodide methylcarbamate (ester) Ammonium, (2-ethyl-5-hydroxyphenyl)trimethyl-, iodide, methylcarbamate (ester) BQ5915000 Methiodide of N-methylurethane of 3-dimethylamino-4-ethylphenol