Description

Cyclobutene-1,2-Dicarboxylic Acid Dimethyl Ester is a high-value, strained-ring chemical intermediate with significant synthetic utility. This compound is prized for its unique four-membered ring structure, which serves as a versatile building block in advanced organic synthesis. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for constructing complex molecular architectures, including natural products and novel active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing complex, strained-ring drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides with unique modes of action.
• Advanced Material Precursor: Serves as a monomer or starting material for specialized polymers and functional materials requiring rigid, cyclic structures.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and other cycloadditions to create complex polycyclic frameworks in academic and industrial R&D.
• Fine Chemical Production: Intermediate for manufacturing specialty chemicals, dyes, and photoactive compounds.

Basic Information

Product Name	Cyclobutene-1,2-Dicarboxylic Acid Dimethyl Ester
CAS No.	1128-10-5
Molecular Formula	C8H10O4
Molecular Weight	170.16 g/mol
Synonyms	Dimethyl Cyclobutene-1,2-dicarboxylate; 1,2-Cyclobutenedicarboxylic Acid Dimethyl Ester; Dimethyl 1,2-Cyclobutenedicarboxylate; 3,4-Dimethoxycarbonylcyclobutene; Cyclobut-1-ene-1,2-dicarboxylic Acid Dimethyl Ester; 1-Cyclobutene-1,2-dicarboxylic Acid, Dimethyl Ester
EINECS	214-427-6

Quality Control

Our Cyclobutene-1,2-Dicarboxylic Acid Dimethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and batch-to-batch consistency. We provide detailed Certificates of Analysis (COA) with every shipment, documenting key parameters such as assay and impurity profiles to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining the material under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 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.