1-Amino-4-ethoxybenzene 156-43-4 4-Aminophenetole 4-Ethoxyaniline Aniline, p-ethoxy- Benzenamine, 4-ethoxy- NSC3116 Phenethidine WLN: ZR DO2 p-Aminophenetole p-Ethoxyaniline p-Phenetidin p-Phenetidine