α-Terpinyl Acetate (α-TA) is a monoterpene ester and a secondary plant metabolite. It is specifically distinguished from generic “Terpinyl acetate” by its isolated, highly pure isomeric form. While “Terpinyl acetate” often refers to a mixture of isomers (α-, β-, and γ-), α-TA represents a defined chemical entity with consistent properties.
It is naturally found in various plants such as cardamom, thyme, lovage, and laurel, contributing to their aromatic profiles. α-Terpinyl Acetate possesses a sweet, herbal, floral, and distinctly lavender scent. Due to its characteristic aroma and recognised safety, it is widely used as a fragrance component and odorant in daily chemical products. Furthermore, its safety profile allows for its application as a food flavouring additive.
In industrial preparation, α-Terpinyl Acetate can be efficiently synthesised from α-Pinene in the presence of an H-β zeolite catalyst, ensuring a high-purity product.