Description

Benzocyclobutene CAS NO 4026-23-7 is a highly strained, fused bicyclic hydrocarbon featuring a cyclobutene ring fused to a benzene ring. This unique structure makes it a valuable and versatile synthetic intermediate in advanced organic chemistry and materials science. It is particularly sought after by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel active pharmaceutical ingredients (APIs), especially those requiring strained-ring systems for biological activity.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and insecticides with unique modes of action.
• Advanced Material Precursor: Serves as a monomer or cross-linking agent in the production of high-performance polymers, resins, and liquid crystal materials.
• Organic Electronic Materials: Employed in the synthesis of π-conjugated systems for applications in organic light-emitting diodes (OLEDs) and semiconductors.
• Ligand and Catalyst Development: Useful framework for creating novel ligands in transition metal catalysis and organocatalysis.
• Academic and Industrial R&D: Fundamental reagent for methodological development in organic synthesis and exploration of new chemical space.

Basic Information

Product Name	Benzocyclobutene
CAS No.	4026-23-7
Molecular Formula	C8H8
Molecular Weight	104.15 g/mol
Synonyms	Bicyclo[4.2.0]octa-1,3,5-triene; BCB; 1,2-Dihydrobenzocyclobutene; Benzocyclobutane-1,2-diene; Benzo-1,2-cyclobutadiene
EINECS	223-701-8

Quality Control

Our Benzocyclobutene is manufactured under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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