Isopulegol

Isopulegol is a monoterpenoid alcohol that occurs in trace amounts in the essential oils of various aromatic plants. It exists as several stereoisomers, and the sensory characteristics can vary with the specific isomer. In fragrance and flavor contexts, isopulegol is noted for minty, herbal, and citrus-like notes, contributing to complex aroma profiles in blends.

Natural occurrence and production: Isopulegol can be isolated from plant essential oils through distillation and purification, and it can also be produced synthetically for commercial use. In industry, it is often discussed as an intermediate or building block in the synthesis of menthol-related compounds. Depending on the production pathway, isopulegol may be converted to other menthol derivatives under catalytic conditions.

Applications: In the flavor and fragrance industry, isopulegol is used as a fragrance ingredient and as a chemical intermediate for menthol-related synthesis. It provides a peppermint-like character that can enhance or modify the scent profile of formulations and products.

Safety and regulation: Isopulegol is generally treated as a fragrance material with low to moderate toxicity when used according to regulatory guidelines. Concentrated vapors or high concentrations can irritate the skin, eyes, or respiratory tract in sensitive individuals. Regulatory status varies by region and by application, with safety assessments informing permissible use levels in cosmetics and food flavors.

See also: Menthol, Pulegone, Terpenes, Essential oils.