. "Erythritol tetranitrate" . "erythrityl tetranitrate" . "erythritol tetranitrate" . "Erythrityl tetranitrate (INN)" . . "Erythritol tetranitrate" . . . . . "ETN" . . . "[(2R,3R)-1,3,4-Trinitrooxybutan-2-yl]nitrate" . . . . . . . .