Description

(5E,9E,13E)-6,10,14,18-Tetramethyl-5,9,13,17-Nonadecatetren-2-One CAS NO 3796-63-2 is a high-purity, conjugated polyunsaturated ketone of significant interest in advanced organic synthesis and fragrance chemistry. Its extended, branched-chain structure with defined stereochemistry makes it a valuable precursor and intermediate for synthesizing complex molecules, including carotenoids, vitamins, and specialized aroma compounds. This compound is essential for R&D laboratories and manufacturers in the pharmaceutical, nutraceutical, and fine fragrance industries seeking to develop novel products with specific biological or olfactory properties.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of retinoids, carotenoid derivatives, and other bioactive molecules with potential therapeutic applications.
• Fragrance and Flavor Ingredient: Serves as a precursor for creating complex, woody, and amber-like aroma molecules used in premium perfumery and flavor formulations.
• Nutraceutical Synthesis: Intermediate in the production of specialized carotenoids and vitamin A analogs for dietary supplements and functional foods.
• Organic Synthesis & Research: A versatile chiral synthon for academic and industrial research in total synthesis, methodology development, and material science.
• Cosmetic Actives: Used in the development of specialty cosmetic ingredients targeting skin health, leveraging its structural relationship to retinoids.
• Agrochemical Intermediates: Potential starting material for the synthesis of novel plant growth regulators or pheromones.

Basic Information

Product Name	(5E,9E,13E)-6,10,14,18-Tetramethyl-5,9,13,17-Nonadecatetren-2-One
CAS No.	3796-63-2
Molecular Formula	C₂₃H₃₈O
Molecular Weight	330.55 g/mol
Synonyms	6,10,14,18-Tetramethyl-5,9,13,17-nonadecatetraen-2-one; all-trans-6,10,14,18-Tetramethylnonadeca-5,9,13,17-tetraen-2-one; Pseudoionone tetramer; Tetrahydrogeranylacetone tetramer; (all-E)-6,10,14,18-Tetramethyl-5,9,13,17-nonadecatetraen-2-one; 5,9,13,17-Nonadecatetraen-2-one, 6,10,14,18-tetramethyl-, (5E,9E,13E)-
EINECS	223-274-7

Quality Control

Our (5E,9E,13E)-6,10,14,18-Tetramethyl-5,9,13,17-Nonadecatetren-2-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and isomer profile, GC for residual solvents, and spectroscopic identification (IR, NMR) to ensure chemical identity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment ensures the material meets the high standards required for research and commercial synthesis 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 place at 2-8°C for long-term stability. For short-term use, storage at controlled room temperature (15-25°C) is acceptable. Keep away from oxidizing agents and strong acids.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC, Area %)	≥ 95.0%
Isomer Profile (HPLC)	Main Isomer (all-E) ≥ 90.0%
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines

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