5,9-Undecadien-1-ol, 2,6,10-trimethyl-, (5E)(CAS#185019-19-6)
5,9-Undecadien-1-ol, 2,6,10-trimethyl-, (5E)(CAS#185019-19-6)
Chemical properties
The molecule contains carbon-carbon double bonds and hydroxyl groups, which have the typical chemical properties of olefins and alcohols. Carbon-carbon double bonds can undergo addition reactions, oxidation reactions, polymerization reactions, etc., such as addition reactions with hydrogen under the action of catalysts to generate corresponding saturated alcohols; Addition reactions occur with halogens, hydrogen halides, etc., and halogen atoms are introduced. Hydroxyl groups can undergo substitution reactions, such as esterification reactions with acids to generate corresponding ester compounds; Elimination reactions can also occur to produce compounds containing carbon-carbon double bonds.
Fields of application
It can be used as an important intermediate in organic synthesis to construct more complex organic compound structures. For example, in the field of fragrance synthesis, it can be used as a raw material for the synthesis of some spices with special aroma, and the reactivity of its double bonds and hydroxyl groups can be used to introduce other functional groups through a series of chemical reactions, so as to synthesize fragrance products with unique flavors.
Storage conditions
It should be sealed in a cool and dry environment, away from fire and heat sources, and avoid contact with strong oxidants, acids and other substances to prevent chemical reactions.
Safety Information
When using, care should be taken to avoid contact with eyes, skin, etc., and if accidentally touched, rinse immediately with plenty of water. Use in a well-ventilated environment and avoid inhaling its vapors.
Application
(5E)-2,6,10-Trimethylundeca-5,9-dien-1-ol, also known as waxy undecadienol, is a high-purity, synthetic acyclic sesquiterpene alcohol with a refined fragrance profile. Structurally an isomer of farnesol, this specialty aroma chemical delivers a clean, long-lasting floral scent with soft neroli, lily-of-the-valley, magnolia, and subtle green-fruity undertones, along with excellent fixative properties in complex perfumery. In personal care, it is extensively incorporated as a substantive fragrance ingredient in high-end fine fragrances, colognes, shampoos, conditioners, body lotions, soaps, and decorative cosmetics, where it provides added warmth, depth, and stability to volatile floral and citrus accords. In household products, it acts as an effective malodor reducer and scent enhancer in laundry detergents, fabric softeners, and cleaning formulations. Its exceptional safety profile has been confirmed by RIFM toxicology assessments and IFRA standards, with approved category-specific maximum concentrations of 2.4% for hair products, 2.3% for body wash, and 8.1% for aerosol air fresheners. The multiple double bonds and primary hydroxyl group enable further functionalization, making this alcohol an excellent building block for organic synthesis of specialty aroma esters, bioactive agents, and advanced polymers. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of this high-purity fragrance fixative with flexible GMP-compliant scaling from R&D to commercial tons. Contact us today for a competitive quote and reliable global supply.







