Description

1,5,6,6-Tetramethyl-3-(3,4,4,5-tetramethyl-2,5-cyclohexadiene-1-ylidene)-1,4-cyclohexadiene is a specialized, high-purity organic compound with the CAS number 89549-24-6. This compound is valued for its unique conjugated diene structure, which makes it a critical intermediate in advanced organic synthesis and materials science research. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Material Science Research: Acts as a precursor or monomer in the development of advanced polymers and organic electronic materials.
• Organic Synthesis Reagent: Employed in academic and industrial laboratories for Diels-Alder reactions and other cycloaddition chemistry.
• Fine Chemical Production: Utilized in the manufacture of dyes, pigments, and other high-value specialty chemicals.
• Chemical Research Standard: Provides a reference standard for analytical method development and quality control in chemical production.

Basic Information

Product Name	1,5,6,6-Tetramethyl-3-(3,4,4,5-tetramethyl-2,5-cyclohexadiene-1-ylidene)-1,4-cyclohexadiene
CAS No.	89549-24-6
Molecular Formula	C20H28
Molecular Weight	268.44 g/mol
Synonyms	1,4-Cyclohexadiene, 1,5,6,6-tetramethyl-3-(3,4,4,5-tetramethyl-2,5-cyclohexadien-1-ylidene)-; 3-(3,4,4,5-Tetramethyl-2,5-cyclohexadien-1-ylidene)-1,5,6,6-tetramethyl-1,4-cyclohexadiene; Tetramethyl Derivative of Bisfulvene; Fulvene Dimer Derivative; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 1,5,6,6-Tetramethyl-3-(3,4,4,5-tetramethyl-2,5-cyclohexadiene-1-ylidene)-1,4-cyclohexadiene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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