Description

(2E,4E)-3-Methyl-5-(2,6,6-Trimethyl-3-Oxo-1-Cyclohexenyl)-2,4-Pentadiene-1-Ol CAS NO 29538-78-1 is a high-value, optically active terpenoid compound known for its complex molecular structure and unique organoleptic properties. This compound is prized for its role as a key intermediate and building block in the synthesis of sophisticated fragrance and flavor molecules. It is essential for manufacturers in the flavor and fragrance (F&F) industry, as well as for research institutions focused on organic synthesis and natural product chemistry. Its precise stereochemistry makes it a critical component for creating high-fidelity, natural-identical aromatic profiles.

Application

• Fragrance Ingredient: A crucial intermediate in the synthesis of premium woody, amber, and floral fragrance compounds, such as derivatives of ionones and damascones.
• Flavor Enhancer: Used in the creation of complex flavoring agents for food and beverages, contributing to fruity and berry-like notes.
• Pharmaceutical Intermediate: Serves as a chiral building block in the research and development of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Cosmetic Additive: Incorporated into high-end cosmetic formulations for its functional properties and subtle aromatic contribution.
• Organic Synthesis Research: A valuable reagent for academic and industrial chemists exploring novel synthetic pathways for terpenoids and carotenoids.
• Aromatherapy & Essential Oils: Used in the formulation of specialized aromatic blends that require specific, natural-identical chemical constituents.

Basic Information

Item	Details
Product Name	(2E,4E)-3-Methyl-5-(2,6,6-Trimethyl-3-Oxo-1-Cyclohexenyl)-2,4-Pentadiene-1-Ol
CAS No.	29538-78-1
Molecular Formula	C15H22O2
Molecular Weight	234.33 g/mol
Synonyms	3-Methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexen-1-yl)-2,4-pentadien-1-ol; (2E,4E)-3-Methyl-5-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)penta-2,4-dien-1-ol; 3-Methyl-5-(2,6,6-trimethyl-3-oxo-1-cyclohexenyl)-2,4-pentadien-1-ol; A key intermediate for Damascone derivatives; Terpenoid alcohol intermediate
EINECS	Contact for details

Quality Control

Our (2E,4E)-3-Methyl-5-(2,6,6-Trimethyl-3-Oxo-1-Cyclohexenyl)-2,4-Pentadiene-1-Ol is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR analysis, to ensure identity, purity, and stereochemical integrity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment ensures the material meets the stringent requirements for use in fragrance, flavor, and pharmaceutical research applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0% (sum of isomers)
Purity (GC)	≥ 90.0% (main isomer)
Water Content (KF)	≤ 0.5%
Specific Rotation	Contact for details

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