Description

Cyclobutene, 1-Bromo-2-Methyl- (9Ci) is a specialized halogenated cyclobutene derivative, serving as a valuable building block in advanced organic synthesis. Its unique strained-ring structure functionalized with bromine and methyl groups makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries, particularly for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, especially those containing cyclobutane or spirocyclic ring systems.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and insecticides that require halogenated, strained-ring components.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers with unique thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in [2+2] cycloaddition reactions, ring-opening polymerizations, and as a substrate for transition-metal catalyzed coupling reactions (e.g., Suzuki, Negishi).
• Ligand and Catalyst Development: Useful for synthesizing novel chiral ligands or organocatalysts that incorporate functionalized cyclobutane frameworks.
• Chemical Biology Probes: Serves as a starting material for creating photoaffinity labels or molecular probes that study biological systems.

Basic Information

Product Name	Cyclobutene, 1-Bromo-2-Methyl- (9Ci)
CAS No.	53968-67-5
Molecular Formula	C5H7Br
Molecular Weight	147.01 g/mol
Synonyms	1-Bromo-2-methylcyclobutene; 2-Methyl-1-bromocyclobutene; 1-Bromo-2-methyl-1-cyclobutene; Bromomethylcyclobutene; 1-Bromo-2-methylcyclobut-1-ene
EINECS	Contact for details

Quality Control

Our Cyclobutene, 1-Bromo-2-Methyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting all critical quality parameters. Our commitment to cGMP principles and rigorous in-process controls guarantees a reliable supply of high-purity material for your most demanding synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be amber glass or compatible opaque material. For long-term storage, consider under an inert atmosphere such as nitrogen or argon to maintain optimal 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%
Related Substances (GC)	Individual impurity ≤ 1.0%
Total Impurities	≤ 3.0%

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