Isobutyl Alcohol

Isobutanol (IUPAC nomenclature: 2-methylpropan-1-ol) is an organic compound with the formula (CH3)2CHCH2OH (sometimes represented as i-BuOH). This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters. Its isomers, the other butanols, include n-butanol, 2-butanol, and tert-butanol, all of which are important industrially.


Molar Weight74.12 g/mol
Melting Point-72 °C
Boiling Point108 °C

Uses and Applications

Key applications

  • Solvents


  • Pharma
  • Coatings & Construction
  • Cosmetics
  • Food

Synonyms: 1-hydroxymethylpropane I 2-methyl-1-propanol I i-Butyl alcohol I isobutanol

Chemical Formula: C4H10O

CAS Number: 78-83-1