4-Methyl-2-pentanone

• CAT Number: R045169
• CAS Number: 108-10-1
• Molecular Formula: C₆H₁₂O
• Molecular Weight: 100.16
• Purity: ≥95%
• Synonyms: 2-Methyl-4-pentanone; 2-Methylpropyl Methyl Ketone; 4-Methyl-2-oxopentane; Hexone; Isobutyl Methyl Ketone; Isopropylacetone; MIBK; MIK; Methyl 2-Methylpropyl Ketone; Methyl iso-Butyl Ketone; Methyl Isobutyl Ketone; NSC 5712; ZMD-D
• Storage: -20°C
• IUPAC Name: 4-methylpentan-2-one
• InChI: InChI=1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3
• InChIKey: NTIZESTWPVYFNL-UHFFFAOYSA-N
• SMILES: CC(C)CC(=O)C

4-Methyl-2-pentanone(CAT: R045169), also known as methyl isobutyl ketone (MIBK), is a branched aliphatic ketone with the molecular formula C₆H₁₂O. It appears as a clear, colorless liquid with a mild, sweet odor and is soluble in organic solvents while having limited solubility in water. Widely used as a medium-evaporation-rate solvent, it is applied in coatings, paints, varnishes, adhesives, and cleaning formulations. Its good solvency for resins, oils, and polymers makes it valuable in both industrial and laboratory settings. Additionally, 4-methyl-2-pentanone serves as an intermediate in chemical synthesis, including the production of antioxidants, surfactants, and specialized organic compounds.