... ;Reduces the cost of maintenance for gasoline storage tanks;N-methylaniline reduces tar formation during storage of gasoline;5- ... standard1Appearance: Transparent oily yellow liquid, a reddish tintmatch2Mass fraction of N - methylaniline,%, not less98.03Mass fraction of aniline,%, not more0 ... liquid Light yellow or brick red liquid N-methyl aniline ≥ 98.0% ≥ 96.0% N,N-dimethyl aniline ≤1.0% ≤ 3.00% ...