Description

(1E,5Z)-1,5-Cyclododecadiene is a high-purity, unsaturated macrocyclic diene with significant utility as a versatile chemical intermediate. Its unique stereochemistry and reactive double bonds make it a valuable building block for synthesizing complex organic molecules, including fragrances, pharmaceuticals, and specialty polymers. This compound is essential for R&D chemists and production specialists in the fine chemical, flavor & fragrance, and advanced material sectors seeking to create novel macrocyclic structures.

Application

• Fragrance & Flavor Intermediate: Serves as a key precursor in the synthesis of macrocyclic musk compounds and other high-value aroma chemicals.
• Pharmaceutical Synthesis: Used as a building block for creating complex, biologically active macrocyclic compounds in medicinal chemistry research.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the development of specialty polymers with unique thermal and mechanical properties.
• Organic Synthesis & Catalysis: Employed in Diels-Alder reactions and other cycloadditions, as well as in metal-catalyzed transformations to construct complex ring systems.
• Ligand & Chelator Precursor: Utilized for the synthesis of macrocyclic ligands used in coordination chemistry and catalysis.
• Research & Development: A critical reagent for academic and industrial laboratories exploring new synthetic methodologies and novel chemical entities.

Basic Information

Product Name	(1E,5Z)-1,5-Cyclododecadiene
CAS No.	19428-99-0
Molecular Formula	C₁₂H₂₀
Molecular Weight	164.29 g/mol
Synonyms	(1E,5Z)-1,5-Cyclododecadiene; (E,Z)-1,5-Cyclododecadiene; trans,cis-1,5-Cyclododecadiene; 1,5-Cyclododecadiene (mixed isomers); Cyclododeca-1,5-diene; 1,5-CDD
EINECS	243-088-5

Quality Control

Our (1E,5Z)-1,5-Cyclododecadiene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and isomeric consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for reliable, batch-to-batch consistency.

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 at room temperature (15-25°C). This material is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain purity and stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 95.0% (sum of E,Z and Z,Z isomers)
Isomeric Ratio (E,Z : Z,Z) (GC)	≥ 9:1
Water Content (KF)	≤ 0.5%
Residue on Evaporation	≤ 0.1%

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