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. Vast 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. [1]
Its other names are 2,6-bis(1,1-dimethylethyl)phenol, dibutylphenol, 2,6-bis(tert-butyl)phenol, and 2,6-di(1,1-dimethylethyl) phenol. Its trade names include Ethanox 701, Ethyl 701, Ethyl AN 701, Irganox L 140, Isonox 103, and TK 12891.
Its CAS number is and its SMILES structure is CC(C)(C)c1c(O) c(C(C)(C)C)ccc1.
Its safety and risk phrases are Template:R22 Template:R36 Template:R37 Template:R38 Template:S22 Template:S36.
See also butylated hydroxytoluene.