【How-to】What is the common name for n2o4

Nitrogen tetroxide (N2O4) has a characteristic reddish-brown color in both liquid and gaseous phases. The solid tetroxide is colorless. N2O4 has an irritating, unpleasant acid-like odor. N2O4 is a very reactive, toxic oxidizer. It is non-flammable with air; however, it will inflame combustible materials.