Other names: N-Methyl Aniline (MMA) MMA Technical, NMA, N-methylaniline; UN No.: 2294 EINECS/ELINECS: 202-870-9; HS Code: 2921420000; Purity: 99.58% Appearance: Pale Yellow to light amber liquid; Place of origin: Russia; Packaging: Isotank in bulk; N-Methylaniline is a principal component of NMA (monomethylaniline), a non-traditional antiknock agent increasingly used by petroleum refiners and fuel distributors around the world to increase the octane number of gasoline petrol. It is usually added to gasoline in concentration of around 1.3% volume to avoid high gum levels that can cause increased carbon deposits in engine parts[citation needed]. Higher concentrations are permitted by most regulatory agencies if a detergent and a fuel combustion modifier are added to the component to keep gum formation from happening. NMA blended in those concentrations to gasoline / petrol is not more toxic than the hundreds of chemicals that compose this fuel. The process ensures the product free from Mn or Fe containing components.