Description

Cyclobutane, Ethynyl- is a specialized organic building block featuring a strained cyclobutane ring fused with a reactive ethynyl (acetylene) group. This unique molecular architecture makes it a valuable intermediate for advanced organic synthesis, particularly in the development of novel pharmaceuticals and functional materials. It is sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular frameworks.

Application

• As a key synthetic intermediate in pharmaceutical research for the development of new active pharmaceutical ingredients (APIs).
• Building block for advanced material science, including the synthesis of novel polymers and dendrimers with tailored properties.
• Precursor in agrochemical research for creating new crop protection agents with unique modes of action.
• Intermediate in organic light-emitting diode (OLED) and other electronic material development.
• Starting material for synthesizing strained alkyne derivatives used in click chemistry and bioconjugation.
• Research chemical for academic and industrial studies in cycloaddition reactions and ring-strain chemistry.

Basic Information

Item	Detail
Product Name	Cyclobutane, Ethynyl-
CAS No.	50786-62-4
Molecular Formula	C6H8
Molecular Weight	80.13 g/mol
Synonyms	Ethynylcyclobutane; 1-Ethynylcyclobutane; Cyclobutylacetylene; 1-Cyclobutylacetylene; 1-Cyclobutylethyne; (Cyclobutylethynyl)benzene (related derivative); Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Cyclobutane, Ethynyl- is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by GC or HPLC), identity confirmation (by FT-IR or NMR), and impurity profiles are available upon request. We are committed to meeting the stringent requirements of research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong acids and oxidizing agents. Due to its highly volatile nature, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) if specified for the grade. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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