Description

Cyclopentene, 1-Bromo-2-Methyl- (9Ci) CAS NO 133302-95-1 is a halogenated cyclopentene derivative, a versatile and reactive building block in advanced organic synthesis. This compound is valued for its unique steric and electronic properties, enabling the construction of complex molecular architectures. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications such as cross-coupling reactions and the synthesis of novel heterocycles.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and herbicides.
• Material Science Research: Serves as a monomer or precursor for specialized polymers and functional materials.
• Cross-Coupling Reactions: An effective substrate in palladium-catalyzed reactions like Suzuki, Negishi, or Kumada couplings.
• Organic Synthesis Building Block: Employed in cycloaddition reactions and for introducing functionalized cyclopentyl motifs.
• Ligand and Catalyst Development: Useful in the synthesis of novel chiral ligands and organometallic catalysts.

Basic Information

Product Name	Cyclopentene, 1-Bromo-2-Methyl- (9Ci)
CAS No.	133302-95-1
Molecular Formula	C6H9Br
Molecular Weight	161.04 g/mol
Synonyms	1-Bromo-2-methylcyclopentene; 2-Methyl-1-bromocyclopentene; 1-Bromo-2-methyl-1-cyclopentene; Bromomethylcyclopentene; (2-Methylcyclopent-1-en-1-yl)bromide
EINECS	Contact for details

Quality Control

Our Cyclopentene, 1-Bromo-2-Methyl- (9Ci) is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flames. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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