Description

3,4-Dimethoxy-3-Cyclobutene-1,2-Dione is a highly functionalized cyclobutene derivative, serving as a versatile and reactive synthetic intermediate. Its unique structure, featuring a dione moiety protected as a dimethoxy enol ether, makes it a valuable precursor for constructing complex organic frameworks, particularly in pharmaceutical and advanced material synthesis. This compound is essential for researchers and process chemists in fine chemical, agrochemical, and pharmaceutical development who require high-purity building blocks for complex molecule assembly.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug molecules, particularly those containing cyclobutane or fused ring systems.
• Agrochemical Synthesis: Used in the research and development of novel active ingredients for crop protection products.
• Material Science Research: Serves as a precursor for the development of specialty polymers and organic electronic materials due to its reactive diketone functionality.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and other cycloadditions to construct strained and complex carbocyclic structures.
• Chemical Research & Development: A valuable tool for academic and industrial R&D labs exploring new synthetic methodologies and heterocyclic chemistry.

Basic Information

Product Name	3,4-Dimethoxy-3-Cyclobutene-1,2-Dione
CAS No.	5222-73-1
Molecular Formula	C6H6O4
Molecular Weight	142.11 g/mol
Synonyms	3,4-Dimethoxy-1,2-cyclobutenedione; 1,2-Cyclobutenedione, 3,4-dimethoxy-; Dimethoxycyclobutenedione; 3,4-Dimethoxycyclobut-3-ene-1,2-dione; Squaric Acid Dimethyl Ester; Dimethyl Squarate
EINECS	226-034-8

Quality Control

Our 3,4-Dimethoxy-3-Cyclobutene-1,2-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

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 heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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