CAS No: 25167-70-8 Properties: Di-iso-Butene consists of a liquid and colorless mixture of the isomers of 2,4,4-Trimethylpentene-/2,4,4-TMP-1 and 2,4,4-Trimethylpentene-/2,4,4-TMP-2. Di-iso-Butene is classified as highly flammable, may cause lung damage if swallowed and as toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment. Vapors in higher concentrations may cause narcotic effects and can form explosive mixtures with air. Information provided by Evonik |