正辛醇 是一种直链脂肪醇，均有8个碳原子，分子式为：CH₃(CH₂)₇OH。

主要用于生产增塑剂、萃取剂、稳定剂，用作溶剂和香料的中间体。在增塑剂领域，辛醇一般是指2-乙基己醇，这是百万吨级的大宗原料，在工业上远比正辛醇更有价值。 辛醇本身也用作香料，调合玫瑰，百合等花香香精，作为皂用香料。该品是我国GB2760-86规定为允许使用的食用香料。主要用以配制椰子、菠萝、桃子、巧克力和柑桔类香精。

1-Octanol also known as Octan-1-ol is the organic compound with the molecular formula CH₃(CH₂)₇OH. It is a fatty alcohol. Many other isomers are also known generically as octanols. 1-Octanol is manufactured for the synthesis of esters for use in perfumes and flavorings. Esters of octanol, such as octyl acetate, occur as components of essential oils. It is used to evaluate the lipophilicity of pharmaceutical products.