Description

Ethanone, 1,1-(3-Cyclobutene-1,2-Diyl)Bis-, trans- (9Ci) is a specialized diketone compound featuring a unique cyclobutene bridge, identified by CAS number 156994-28-4. This high-purity intermediate is valued for its rigid, fused-ring structure, which makes it a critical building block in advanced organic synthesis. It is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for constructing complex molecular architectures.

Application

This diketone serves as a versatile synthon in sophisticated chemical manufacturing processes. Its applications include:

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates with constrained geometries.
• Agrochemical Research: Used in developing new generation herbicides and fungicides where the cyclobutene core contributes to biological activity.
• Material Science: Acts as a monomer or cross-linking agent in the development of specialty polymers with tailored thermal and mechanical properties.
• Organic Electronic Materials: Investigated as a core component for organic semiconductors and light-emitting materials due to its conjugated system.
• Ligand Synthesis: Employed in the preparation of chelating ligands for catalysis and metal-organic frameworks (MOFs).
• Academic & Industrial R&D: A valuable compound for methodological studies in organic chemistry, including cycloaddition and ring-opening reactions.

Basic Information

Product Name	Ethanone, 1,1-(3-Cyclobutene-1,2-Diyl)Bis-, trans- (9Ci)
CAS No.	156994-28-4
Molecular Formula	C10H10O2
Molecular Weight	162.19 g/mol
Synonyms	trans-1,2-Diacetylcyclobutene; (1E,2E)-1,2-Bis(acetyl)cyclobutene; 1,2-Cyclobutenediylbis(ethanone), trans-; 3-Cyclobutene-1,2-diylbis(ethanone), (E,E)-; 1,2-Diacetyl-1,2-dihydrocyclobutene; 156994-28-4; trans-1,2-Diacetylcyclobut-3-ene
EINECS	Contact for details

Quality Control

Our production of Ethanone, 1,1-(3-Cyclobutene-1,2-Diyl)Bis-, trans- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for sensitive synthetic applications. All materials are manufactured and handled in a controlled environment. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to verify identity, purity, and the absence of critical impurities. A detailed Certificate of Analysis (COA) is provided with each shipment, and custom specifications can be developed to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is light-sensitive and should be stored away from direct light exposure. Keep the container tightly sealed when not in use to prevent contamination and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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