Description

2-Methyl-α-(Methylsulfonyl)-2-Cyclobutene-1-Acetic Acid Methyl Ester is a specialized, high-value chemical intermediate featuring a cyclobutene core functionalized with a methylsulfonyl group and an acetic acid methyl ester. This compound matters for its role as a key building block in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those requiring constrained ring systems.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactive functional groups.
• Advanced Material Research: Acts as a monomer or cross-linking agent in the development of specialty polymers with unique thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in academic and industrial laboratories for constructing complex natural products or other cyclobutane/cyclobutene-containing molecules.
• Ligand and Catalyst Development: Utilized in the preparation of novel chiral ligands or organocatalysts for asymmetric synthesis.

Basic Information

Product Name	2-Methyl-α-(Methylsulfonyl)-2-Cyclobutene-1-Acetic Acid Methyl Ester
CAS No.	74367-18-3
Molecular Formula	C9H14O4S
Molecular Weight	218.27 g/mol
Synonyms	Methyl 2-Methyl-α-(methylsulfonyl)-2-cyclobutene-1-acetate; 2-Cyclobutene-1-acetic acid, 2-methyl-α-(methylsulfonyl)-, methyl ester; Methyl 2-methyl-1-(methylsulfonyl)cyclobut-2-ene-1-carboxylate; 74367-18-3; Methyl (2-methyl-1-methylsulfonylcyclobut-2-ene-1-carboxylate); (2-Methyl-1-methylsulfonylcyclobut-2-enyl)acetic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of 2-Methyl-α-(Methylsulfonyl)-2-Cyclobutene-1-Acetic Acid Methyl Ester adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and development applications. All materials are characterized using advanced analytical techniques including NMR, HPLC, and GC-MS. 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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