Description

Cyclobutene, 1-Bromo-3-Methyl- (9Ci) is a specialized brominated cyclobutene derivative, a valuable building block in advanced organic synthesis. This compound is significant for its strained ring structure and reactive bromine substituent, which facilitate complex cycloaddition and cross-coupling reactions. It is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel, high-value target molecules.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those requiring strained carbocyclic frameworks.
• Agrochemical Research: Used in the development of new active ingredients with unique biological activity profiles.
• Material Science: Acts as a monomer or cross-linking agent in the research of specialty polymers with tailored thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in [4+2] cycloaddition (Diels-Alder) reactions and transition metal-catalyzed cross-couplings (e.g., Suzuki, Heck) to construct complex molecular architectures.
• Chemical Biology Probe Development: Utilized to create molecular probes for studying enzyme mechanisms or protein-ligand interactions.
• Academic & Industrial R&D: A critical reagent for methodological studies in synthetic organic chemistry and catalysis.

Basic Information

Product Name	Cyclobutene, 1-Bromo-3-Methyl- (9Ci)
CAS No.	53143-81-0
Molecular Formula	C5H7Br
Molecular Weight	147.01 g/mol
Synonyms	1-Bromo-3-methylcyclobutene; 3-Methyl-1-bromocyclobutene; 1-Bromo-3-methyl-1-cyclobutene; Bromomethylcyclobutene; (3-Methylcyclobuten-1-yl)bromide
EINECS	Contact for details

Quality Control

Our Cyclobutene, 1-Bromo-3-Methyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, GC-MS, and NMR, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to support your research and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). This compound is likely light-sensitive and should be handled under an inert atmosphere to prevent decomposition. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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