Description

3,3,5,5-Tetramethyl-1,2-Cyclopentanedione is a high-purity, symmetrical diketone compound characterized by its unique sterically hindered cyclopentane structure. This compound serves as a versatile and critical advanced pharmaceutical intermediate and a valuable building block in organic synthesis. It is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop novel molecules with enhanced properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sterically hindered, complex active pharmaceutical ingredients (APIs) and drug candidates.
• Ligand and Catalyst Synthesis: Building block for creating specialized ligands used in asymmetric catalysis and transition metal complexes.
• Agrochemical Development: Intermediate for novel pesticides and herbicides, leveraging its stable diketone framework.
• Fine Chemical Synthesis: Used in the production of dyes, pigments, and other performance chemicals requiring a rigid, substituted core.
• Polymer Chemistry: Monomer or cross-linking agent for developing polymers with specific thermal or mechanical properties.
• Flavor & Fragrance Industry: Potential intermediate for synthesizing musk-like compounds or other specialty aroma chemicals.

Basic Information

Product Name	3,3,5,5-Tetramethyl-1,2-Cyclopentanedione
CAS No.	20633-06-1
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	3,3,5,5-Tetramethylcyclopentane-1,2-dione; Tetramethylcyclopentanedione; 1,2-Cyclopentanedione, 3,3,5,5-tetramethyl-; TMCPD; 3,3,5,5-Tetramethyl-1,2-diketocyclopentane; NSC 163022; 3,3,5,5-Tetramethylcyclopentanedione
EINECS	Contact for details

Quality Control

Our 3,3,5,5-Tetramethyl-1,2-Cyclopentanedione is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced intermediates. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided to guarantee supply chain reliability and traceability for your critical processes.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.