Description

Cyclobutene, 3-Bromo-3-Methyl- (7Ci) is a specialized brominated cyclobutene derivative, a high-value building block in advanced organic synthesis. Its unique strained-ring structure and reactive bromine substituent make it a critical precursor for constructing complex molecular architectures. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in programs targeting cyclobutane-based core structures.
• Agrochemical Research: Used in the synthesis of experimental herbicides, fungicides, and insecticides where the cyclobutane ring can impart unique biological activity.
• Material Science Precursor: Employed in the synthesis of advanced polymers and specialty chemicals with tailored thermal or mechanical properties.
• Organic Synthesis Building Block: Utilized in [2+2] cycloaddition reactions, ring-opening polymerizations, and as a substrate for cross-coupling reactions (e.g., Suzuki, Negishi) to introduce functionalized cyclobutyl groups.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new reaction pathways in synthetic organic chemistry laboratories.

Basic Information

Product Name	Cyclobutene, 3-Bromo-3-Methyl- (7Ci)
CAS No.	89280-21-7
Molecular Formula	C5H7Br
Molecular Weight	147.01 g/mol
Synonyms	3-Bromo-3-methylcyclobutene; 3-Methyl-3-bromocyclobutene; 1-Bromo-1-methylcyclobut-2-ene; 3-Bromo-3-methyl-1-cyclobutene; 3-Methyl-3-bromo-1-cyclobutene
EINECS	Contact for details

Quality Control

Every batch of Cyclobutene, 3-Bromo-3-Methyl- (7Ci) is produced and analyzed under strict quality protocols to ensure consistency and reliability for research and development purposes. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing purity, identity, and impurity profiles as determined by GC, NMR, and other analytical techniques.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature and potential volatility, containers should be kept sealed and handled under an inert atmosphere when appropriate.

Specification

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

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