Description

2,2'-Methylenebis(5,5-Dimethylcyclohexane-1,3-Dione) is a high-purity, versatile chemical intermediate belonging to the class of methylene-bis-diketones. This compound matters for its role as a key building block in the synthesis of complex organic molecules, offering reliable reactivity and structural stability. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for research, development, and production.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a rigid, bicyclic framework.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Serves as a cross-linking agent or monomer for creating high-performance resins and specialty polymers with enhanced thermal properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for constructing complex diketone-based structures and heterocycles.
• Ligand & Catalyst Development: Utilized in the preparation of chelating ligands for metal catalysis and coordination chemistry.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and other performance chemicals.

Basic Information

Product Name	2,2'-Methylenebis(5,5-Dimethylcyclohexane-1,3-Dione)
CAS No.	2181-22-8
Molecular Formula	C₁₇H₂₄O₄
Molecular Weight	292.37 g/mol
Synonyms	2,2'-Methylenebis(5,5-dimethyl-1,3-cyclohexanedione); Methylene Bis(Dimedone); Dimedone Dimer; 5,5-Dimethyl-1,3-cyclohexanedione dimer; Bis(5,5-dimethyl-1,3-cyclohexanedion-2-yl)methane; NSC 403697; 1,1'-(Methylenedi-2,1-cyclohexanediyl)di-3,5-diketocyclohexane
EINECS	218-548-5

Quality Control

Our 2,2'-Methylenebis(5,5-Dimethylcyclohexane-1,3-Dione) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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