4-Ethoxyaniline hydrochloride 4-Ethoxybenzenamine hydrochloride 637-56-9 Benzenamine, 4-ethoxy-, hydrochloride EINECS 211-292-6 Phenetidine hydrochloride p-Aminophenyl ethyl ether hydrochloride p-Phenetidine, hydrochloride p-Phenetidinium chloride