4-Methyl-2-Pentanol

4-Methyl-2-Pentanol (CAS 108-11-2), commercially known as MIBC (Methyl Isobutyl Carbinol), is a branched-chain aliphatic alcohol used as a solvent and process chemical.

Where is 4-Methyl-2-Pentanol used?

• Mineral processing: dominant frother in froth flotation circuits
• Copper, zinc and lead concentrates: controls bubble size and stability to improve ore recovery
• Polymers and resins: process solvent and viscosity modifier in production and coating formulations
• Personal care: carrier solvent in fragrance compounds and specialty cosmetic formulations requiring controlled evaporation
• Flavoring: appears at flavor-grade specifications where its odor profile meets regulatory thresholds
• Precursor to some plasticizers.
• Inert solvent for nitrocellulose lacquer to increase gloss and flatness of the coating.

Good to know: Technical grade is standard for mining and industrial solvent use; higher-purity grades serve cosmetic and flavor end uses. Buyers should confirm purity specifications and water content limits, and for sensitive formulation work ensure FCC or USP requirements are met.

Formulation notes

• Incompatible with oxidizing agents, acids, and acid chlorides.

Typical specification

• Moisture content 0.2% maximum.
• Acid content 0.01% maximum.

Regulatory status

• Harmonised-classified under CLP Regulation 1272/2008 (EU).
• Assigned UN number 2053 for transport.
• Carries hazard statement H226: flammable liquid and vapour (EU).

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.