Octan2ol

Octan-2-ol, also known as 2-octanol or sec-octanol, is a secondary alcohol with eight carbon atoms. Its IUPAC name is octan-2-ol and its chemical formula is C8H18O (molar mass about 130.23 g/mol). The molecule has a hydroxyl group on the second carbon of an octane chain, giving rise to a stereogenic center at C2 in most samples, and thus existing as enantiomers (R and S). In practice, commercial preparations are usually racemic, though enantioenriched forms can be obtained for specialized applications.

Physical properties are typical of medium-chain secondary alcohols: it is a colorless to pale liquid with a characteristic alcohol odor, limited water solubility, and high boiling point relative to smaller alcohols. It is miscible with many organic solvents but only sparingly soluble in water. It is flammable and should be handled with standard laboratory or industrial precautions, including avoidance of ignition sources and adequate ventilation.

Production and uses are mainly industrial. Octan-2-ol is commonly produced by catalytic hydration of 2-octene or by reduction of octanone, and can also arise as a byproduct in petrochemical processing. It is widely used as a solvent and as an intermediate in organic synthesis. In the fragrance and flavor industries, 2-octanol serves as a precursor to esters and other-derived compounds that contribute to fruity or floral notes. It can also be used in the preparation of specialty chemicals and polymers.

Safety considerations include its flammability and potential irritation to skin, eyes, and the respiratory tract. Proper storage in a cool, well-ventilated area away from oxidizers, along with appropriate personal protective equipment, is advised.