Description

Cyclobuta-1,3-Diene CAS NO 1120-53-2 is a highly reactive, strained hydrocarbon featuring a four-membered ring with two conjugated double bonds. This unique structure makes it a valuable and versatile building block in advanced organic synthesis and materials science research. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex, biologically active molecules and novel drug candidates.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides with unique modes of action.
• Polymer & Material Science: Acts as a monomer or co-monomer for creating polymers with specific optical, electronic, or mechanical properties.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and other cycloadditions to construct complex carbocyclic and heterocyclic ring systems.
• Ligand & Catalyst Development: Utilized in the preparation of novel ligands for transition metal catalysis and organometallic chemistry.
• Academic & Industrial R&D: A fundamental reagent for exploring new reaction pathways and synthetic methodologies in chemistry laboratories.

Basic Information

Product Name	Cyclobuta-1,3-Diene
CAS No.	1120-53-2
Molecular Formula	C4H4
Molecular Weight	52.07 g/mol
Synonyms	Cyclobutadiene; 1,3-Cyclobutadiene; [4]Annulene; Tetracyclo[2.2.0.02,4.03,5]hexane (valence isomer); Bicyclo[1.1.0]but-1(3)-ene
EINECS	214-310-5

Quality Control

Our Cyclobuta-1,3-Diene is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and reliability for sensitive synthetic applications. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and easily oxidized nature, this material must be stored under an inert atmosphere (e.g., nitrogen or argon) at recommended temperatures between 2°C and 8°C. Keep away from heat, sparks, and open flames. Store only in approved, vented safety cabinets or dedicated cold storage areas.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid / solution
Identification (IR / NMR)	Conforms to reference standard
Purity (GC)	≥ 95.0% (Typical grades: 95%, 98%)
Stabilizer Content	As specified (if applicable)
Solvent (if supplied as solution)	As specified (e.g., Toluene, THF)

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