2,6-Di-tert-butylphenol

2,6-Di-tert-butylphenol (2,6-DTBP) is an alkylated phenol industrially used as an UV stabilizer and an antioxidant for fuels, oils, gasolines, and other hydrocarbon based products; use as an antioxidant in rubber and some plastics was reported in small scale. It is widely approved to prevent gumming in aviation fuels. It is a clear to pale yellow semi-solid, with melting point between 34-36 °C and boiling point at 253 °C, insoluble in water but soluble in ether and methanol. It is also used in manufacture of fragrances and pharmaceuticals. The ast majority of its production volume is used as an intermediate for synthesis of other substances, mostly other phenolic antioxidants. It is not readily biodegradable, and is very toxic to water organisms. 

Its trade names include Ethanox 701, Ethyl 701, Ethyl AN 701, Irganox L 140, Isonox 103, and TK 12891.