Description

1-Cyclobutene-1-Carboxylic Acid, 3-Ethyl- (7Ci,9Ci) is a specialized, high-value organic acid building block featuring a strained cyclobutene ring system. This compound matters as a critical intermediate for synthesizing complex molecules in advanced pharmaceutical and agrochemical research, where its unique structure enables the creation of novel bioactive compounds. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and advanced material sectors for constructing intricate molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry programs targeting new therapeutic agents.
• Agrochemical Research: Used in the development of advanced herbicides, fungicides, and insecticides, leveraging its reactive carboxylic acid and alkene functionalities.
• Fine Chemical Synthesis: Serves as a versatile precursor for creating complex organic molecules, including natural product analogs and specialty polymers.
• Material Science: Potential monomer or cross-linking agent in the research of polymers with specific thermal or mechanical properties derived from the cyclobutene core.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic synthesis, including ring-opening and functionalization reactions.

Basic Information

Item	Details
Product Name	1-Cyclobutene-1-Carboxylic Acid, 3-Ethyl- (7Ci,9Ci)
CAS No.	89897-93-8
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	3-Ethyl-1-cyclobutene-1-carboxylic acid; 3-Ethylcyclobut-1-ene-1-carboxylic acid; 1-Cyclobutene-1-carboxylic acid, 3-ethyl-; (7CI,9CI); 3-Ethyl-1-cyclobutene carboxylic acid
EINECS	Contact for details

Quality Control

Our 1-Cyclobutene-1-Carboxylic Acid, 3-Ethyl- (7Ci,9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent identity. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to guarantee compliance with your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its nature as a strong acid/organic solvent, keep away from heat, sparks, and incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
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.