Description

(E)-3,6,10-Trimethyl-3,9-Undecadien-2-One is a high-purity, unsaturated ketone with a distinctive woody, amber-like aroma, valued for its role as a key fragrance intermediate. This compound is essential for creating sophisticated, long-lasting scent profiles in fine perfumery and functional consumer products. It is primarily sought after by manufacturers in the fragrance, flavor, and cosmetic industries requiring reliable, high-quality aroma chemicals for their formulations.

Application

• Fine Fragrance: A key building block in the creation of woody, amber, and tobacco accords for premium perfumes, colognes, and eau de toilettes.
• Functional Fragrances: Used in scented household and personal care products such as detergents, fabric softeners, soaps, and shampoos to impart a warm, elegant base note.
• Flavor Enhancer: Employed in trace amounts to add complex, tobacco-like nuances to certain food and beverage flavorings.
• Cosmetic Ingredients: Incorporated into skincare and body care products where a pleasant, persistent fragrance is desired.
• Aroma Chemical Synthesis: Serves as a versatile intermediate for the synthesis of other more complex fragrance molecules.
• Air Care Products: A component in the formulation of air fresheners, diffusers, and scented candles for its stable and diffusive scent character.

Basic Information

Product Name	(E)-3,6,10-Trimethyl-3,9-Undecadien-2-One
CAS No.	20056-22-8
Molecular Formula	C₁₄H₂₄O
Molecular Weight	208.34 g/mol
Synonyms	3,6,10-Trimethyl-3,9-undecadien-2-one; (E)-3,6,10-Trimethylundeca-3,9-dien-2-one; (E)-6,10-Dimethyl-3-methyleneundeca-1,9-dien-5-one; Geranylacetone (isomer); Pseudo Geranylacetone; Pseudo Ionone; (E)-Pseudoionone; 3,9-Undecadien-2-one, 3,6,10-trimethyl-, (3E)-
EINECS	243-518-7

Quality Control

Our (E)-3,6,10-Trimethyl-3,9-Undecadien-2-One is produced under a strict quality management system. Each batch is analyzed to ensure it meets stringent specifications for identity, purity, and olfactory profile. A comprehensive Certificate of Analysis (COA) detailing assay, isomer content, and physical properties is provided with every shipment to guarantee consistency and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at 15-25°C. Due to its highly volatile nature, keep containers tightly sealed when not in use to prevent evaporation and maintain product integrity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
(E)-Isomer Content (GC)	≥ 95.0%
Refractive Index (20°C)	1.485 - 1.495
Specific Gravity (20/20°C)	0.880 - 0.890
Solubility	Miscible with alcohols and oils

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.