(E,E)-2,4-Hexadien-1-ol (CAS 17102-64-6), also known as trans,trans-2,4-hexadien-1-ol or sorbic alcohol, is a medium-chain unsaturated fatty alcohol. It is primarily used as a versatile starting material in organic synthesis and as a flavoring or fragrance agent that provides an herbaceous, green, and apple-like aroma. Purity > 99%.