Description

Cyclobutane, 1-Ethynyl-3-Methylene-2-(1,2-Propadienyl)-, trans- (9Ci) is a specialized, high-energy strained-ring compound featuring a unique combination of alkyne, allene, and alkene functional groups. This complex molecular architecture makes it a valuable and versatile advanced synthetic intermediate for constructing intricate organic frameworks. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science sectors for pioneering new synthetic routes and novel molecular entities.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex, bioactive molecules and potential drug candidates, leveraging its strained ring system for unique reactivity.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides where its specific carbon skeleton can contribute to new modes of action.
• Advanced Materials Synthesis: Acts as a precursor for specialty polymers, dendrimers, or molecular scaffolds with tailored electronic or structural properties.
• Academic & Industrial R&D: Employed in methodological chemistry research for studying cycloaddition reactions, ring-opening polymerizations, and other transformations of highly functionalized small rings.
• Ligand & Catalyst Development: Utilized to create novel chelating ligands or organometallic complexes for catalytic applications.
• Fine Chemical Production: Functions as a strategic intermediate in the multi-step synthesis of high-value specialty chemicals and flavors/fragrances.

Basic Information

Item	Detail
Product Name	Cyclobutane, 1-Ethynyl-3-Methylene-2-(1,2-Propadienyl)-, trans- (9Ci)
CAS No.	96660-59-2
Molecular Formula	C9H8
Molecular Weight	116.16 g/mol
Synonyms	trans-1-Ethynyl-3-methylene-2-(1,2-propadienyl)cyclobutane; 1-Ethynyl-3-methylene-2-(propadien-1-yl)cyclobutane, trans-; (trans)-1-Ethynyl-3-methylene-2-(prop-1,2-dien-1-yl)cyclobutane; NSC 406916; 96660-59-2; Cyclobutane, 1-ethynyl-3-methylene-2-(1,2-propadienyl)-, (E)-; A highly functionalized cyclobutane derivative
EINECS	Contact for details

Quality Control

Every batch of our Cyclobutane, 1-Ethynyl-3-Methylene-2-(1,2-Propadienyl)-, trans- (9Ci) undergoes rigorous analytical characterization to ensure identity, purity, and consistency. We employ advanced techniques including GC, HPLC, NMR, and IR spectroscopy to verify specifications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical data is provided with each shipment to support your quality and regulatory requirements.

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. For long-term stability, storage at freezer temperatures (e.g., -20°C) is recommended. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Standard Grade)
Purity (GC/HPLC)	≥ 98.0% (High Purity Grade)
Water Content (KF)	≤ 0.5%

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