Description

1,2,3-Trimethylcyclopentene CAS NO 473-91-6 is a specialized, highly volatile cyclic olefin used as a versatile intermediate in advanced organic synthesis. Its unique sterically hindered structure makes it valuable for creating complex molecular architectures and fine-tuning material properties. This compound is essential for R&D and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it serves as a key building block for active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Specialty Polymer & Resin Production: Serves as a monomer or co-monomer for creating polymers with specific thermal or mechanical properties.
• Fragrance & Flavor Chemistry: Acts as a precursor for synthesizing specific terpene-based aroma compounds.
• Organic Synthesis & Catalysis Research: A valuable substrate in organometallic chemistry and for studying novel catalytic reactions like cycloadditions.
• Material Science: Investigated for use in liquid crystals, organic semiconductors, and other advanced electronic materials.

Basic Information

Product Name	1,2,3-Trimethylcyclopentene
CAS No.	473-91-6
Molecular Formula	C8H14
Molecular Weight	110.20 g/mol
Synonyms	1,2,3-Trimethyl-1-cyclopentene; 1,2,3-Trimethylcyclopent-1-ene; Trimethylcyclopentene; NSC 66439; Cyclopentene, 1,2,3-trimethyl-
EINECS	207-474-8

Quality Control

Our 1,2,3-Trimethylcyclopentene is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with all shipments, detailing batch-specific results. Our quality commitment ensures the material meets the high standards required for sensitive synthesis applications in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat sources and incompatible materials such as strong acids and oxidizers. Due to its high volatility, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
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.