5-(sec-Butyl)-2-(2,4-dimethylcyclohex-3-en-1-yl)-5-methyl-1,3-dioxane

Karanal (5-(sec-Butyl)-2-(2,4-dimethylcyclohex-3-en-1-yl)-5-methyl-1,3-dioxane) is a synthetic musk-woody aroma chemical developed by IFF (International Flavors & Fragrances), notable for its exceptionally powerful, warm, woody-ambery scent profile with a distinctive sandalwood-like nuance. It is prized by perfumers and cosmetic formulators for its outstanding tenacity and longevity on skin, requiring only very low usage levels (typically 0.1–1%) to achieve significant olfactory impact. Karanal is widely used in fine fragrances, skin care, and hair care formulations as a modern alternative to certain restricted musks, though it is subject to IFRA guidelines due to potential skin sensitization concerns.