Description

Cyclobutane, 1,2-Diethynyl-1,2-Dimethyl-, cis- (9Ci) is a specialized, high-value organic building block featuring a strained cyclobutane ring substituted with ethynyl groups. This compound matters as a key precursor in advanced materials science and pharmaceutical research, enabling the synthesis of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the fine chemical, agrochemical, and advanced polymer industries.

Application

• Pharmaceutical Intermediate: Serves as a critical synthon for constructing novel drug candidates with complex cyclic frameworks.
• Advanced Material Synthesis: Used in the development of specialty polymers, dendrimers, and molecular cages with tailored properties.
• Agrochemical Research: Acts as a building block for novel active ingredients requiring specific three-dimensional geometry.
• Ligand & Catalyst Development: Employed in the creation of novel ligands for asymmetric catalysis and organometallic complexes.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic synthesis, particularly ring-opening and cross-coupling reactions.
• High-Energy Materials Research: Investigated as a potential precursor for high-density fuels or energetic materials due to its strained ring and acetylene moieties.

Basic Information

Product Name	Cyclobutane, 1,2-Diethynyl-1,2-Dimethyl-, cis- (9Ci)
CAS No.	57220-84-5
Molecular Formula	C10H10
Molecular Weight	130.19 g/mol
Synonyms	cis-1,2-Diethynyl-1,2-dimethylcyclobutane; 1,2-Dimethyl-1,2-diethynylcyclobutane, cis-; (1R,2R)-1,2-Diethynyl-1,2-dimethylcyclobutane; (1S,2S)-1,2-Diethynyl-1,2-dimethylcyclobutane; 1,2-Diethynyl-1,2-dimethylcyclobutane; cis-Diethynyldimethylcyclobutane; 57220-84-5 (CAS)
EINECS	Contact for details

Quality Control

Our Cyclobutane, 1,2-Diethynyl-1,2-Dimethyl-, cis- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including NMR, GC, and HPLC, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place, preferably at 2-8°C for long-term stability. This compound may be sensitive to prolonged exposure to air and moisture; store under an inert atmosphere such as nitrogen or argon for optimal shelf life.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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