Description

1,3-Cyclopentadiene,1,2-Dichloro-5-Methylene-(9Ci) is a specialized chlorinated cyclopentadiene derivative, a versatile building block in advanced organic synthesis. This compound matters for its unique reactive structure, which serves as a key precursor for synthesizing complex molecules, including agrochemicals, pharmaceuticals, and functional materials. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and agrochemical industries for creating novel compounds with specific biological or material properties.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used as a key building block for developing advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers and advanced functional materials.
• Organic Synthesis & Catalysis: Employed in Diels-Alder reactions and other cycloadditions to construct complex polycyclic frameworks.
• Chemical Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic methodologies and reaction pathways.
• Ligand & Catalyst Preparation: Used in the preparation of specialized ligands for metal-organic catalysis.

Basic Information

Product Name	1,3-Cyclopentadiene,1,2-Dichloro-5-Methylene-(9Ci)
CAS No.	67949-10-4
Molecular Formula	C6H4Cl2
Molecular Weight	146.00 g/mol
Synonyms	5-Methylene-1,2-dichlorocyclopentadiene; 1,2-Dichloro-5-methylidenecyclopenta-1,3-diene; 1,3-Cyclopentadiene, 1,2-dichloro-5-methylene-; Dichloromethylidenecyclopentadiene; 1,2-Dichloro-5-methylene-1,3-cyclopentadiene; 5-Methylene-1,2-dichloro-1,3-cyclopentadiene
EINECS	Contact for details

Quality Control

Our 1,3-Cyclopentadiene,1,2-Dichloro-5-Methylene-(9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and batch-to-batch consistency suitable for demanding synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 2°C and 8°C for long-term stability. Keep container tightly sealed under an inert atmosphere if possible to prevent degradation.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Individual impurity ≤ 1.0%
Total Impurities	≤ 5.0%

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