Description

Tetraethyl Squarate is a versatile organic ester derived from squaric acid, serving as a key intermediate in advanced chemical synthesis. Its value lies in its unique four-membered ring structure, which is highly reactive and useful for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing novel drug candidates, particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the development of advanced crop protection agents and herbicides.
• Polymer & Material Science: Acts as a cross-linking agent or monomer for creating specialty polymers with unique thermal or mechanical properties.
• Organic Synthesis Reagent: Employed in cycloaddition reactions and as a precursor for other squaric acid derivatives.
• Dye & Pigment Manufacturing: Serves as an intermediate in the production of specific high-performance colorants.
• Ligand & Chelator Precursor: Useful for synthesizing complexing agents in coordination chemistry.

Basic Information

Product Name	Tetraethyl Squarate
CAS No.	121496-65-9
Molecular Formula	C12H18O4
Molecular Weight	226.27 g/mol
Synonyms	Squaric Acid Tetraethyl Ester; 3,4-Diethoxy-3-cyclobutene-1,2-dione; Tetraethyl 1,2-Dihydroxycyclobut-3-ene-1,2-dionate; 1,2-Diethoxycyclobut-3-ene-1,2-dione; Diethyl Squarate (common misnomer); Squarate Tetraethyl Ester; 1,2,3,4-Tetraethoxycyclobut-1-ene (systematic); CBEE (abbreviation)
EINECS	Contact for details

Quality Control

Our Tetraethyl Squarate is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC/GC purity, identity confirmation by FT-IR and NMR, and impurity profiling. A Certificate of Analysis (COA) is supplied with each shipment, and we support compliance with relevant regulatory frameworks for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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