Description

2-(tert-Butyl)-5-(1-methylethylidene)-1,3-cyclopentadiene is a specialized, high-purity cyclopentadiene derivative, a key building block in advanced organic synthesis and materials science. Its unique sterically hindered structure makes it a valuable precursor for synthesizing complex ligands, catalysts, and specialty polymers. This compound is essential for R&D and production in the fine chemical, pharmaceutical intermediate, and advanced material sectors, where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediates: Serves as a crucial precursor in the synthesis of complex, sterically hindered active pharmaceutical ingredients (APIs) and drug candidates.
• Catalyst & Ligand Synthesis: Used to create novel organometallic catalysts and specialized ligands for asymmetric synthesis and polymerization processes.
• Advanced Material Research: Acts as a monomer or co-monomer in the development of specialty polymers and high-performance resins with tailored thermal and mechanical properties.
• Fine Chemical Production: Employed in the multi-step synthesis of complex organic molecules for agrochemicals, flavors, and fragrances.
• Academic & Industrial R&D: A valuable reagent for exploring new synthetic methodologies and developing novel chemical entities in research laboratories.

Basic Information

Product Name	2-(tert-Butyl)-5-(1-methylethylidene)-1,3-cyclopentadiene
CAS No.	132380-73-5
Molecular Formula	C12H18
Molecular Weight	162.27 g/mol
Synonyms	2-tert-Butyl-5-isopropylidene-1,3-cyclopentadiene; 5-(1-Methylethylidene)-2-(1,1-dimethylethyl)-1,3-cyclopentadiene; 2-(tert-Butyl)-5-isopropylidenecyclopentadiene; 2-tert-Butyl-5-(propan-2-ylidene)cyclopenta-1,3-diene; tert-Butyl isopropylidenecyclopentadiene
EINECS	Contact for details

Quality Control

Every batch of 2-(tert-Butyl)-5-(1-methylethylidene)-1,3-cyclopentadiene is manufactured and tested under strict quality management systems to ensure consistency and reliability for your critical applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles as determined by advanced analytical techniques including GC and HPLC. Our commitment to quality assurance supports your compliance needs in regulated research and production environments.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. 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 structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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