Mesityl oxide CAS No: 141-79-7

Mesityl oxide is a colorless to pale yellow, volatile liquid with a sweet, honey-like odor. Classified as an α, β-unsaturated ketone, its chemical formula is C₆H₁₀O and its IUPAC name is 4-methylpent-3-en-2-one. It is primarily used as an industrial solvent and organic intermediate.

Appearance Clear liquid free from
Purity (α + β isomer) 99.0 Min.
Moisture Content 0.10 Max.
Specific Gravity@20°C 0.852 – 0.856
Color (Pt-Co) 75 Max

Solvent: Utilized as an active solvent for nitrocellulose, oils, resins, plastics, and in paint removers.
Chemical Intermediate: Used to synthesize methyl isobutyl ketone (MIBK), methyl isobutyl carbinol (MIBC), and various rubber chemicals, pharmaceuticals, and dyes.
Flavor & Fragrance: Occasionally used in trace amounts for formulating synthetic fruit and vegetable flavors, or as a perfuming agent in cosmetics.