Description

(2E)-2-(Cyclopentylmethylene)-4-(Methylsulfonyl)Benzeneacetic Acid Methyl Ester is a high-purity synthetic intermediate characterized by its unique α,β-unsaturated ester structure with a methylsulfonyl substituent. This compound matters for its role as a versatile building block in advanced organic synthesis, enabling the development of novel chemical entities. It is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for creating new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel small molecule drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or plant growth regulators, leveraging its reactive ester functionality.
• Chemical Synthesis Building Block: Serves as a Michael acceptor or a versatile electrophile in complex multi-step organic reactions for creating specialized fine chemicals.
• Material Science Research: Potential monomer or additive in the research of specialized polymers with tailored properties.
• Academic & Industrial R&D: Employed in discovery chemistry programs for structure-activity relationship (SAR) studies and library synthesis.

Basic Information

Product Name	(2E)-2-(Cyclopentylmethylene)-4-(Methylsulfonyl)Benzeneacetic Acid Methyl Ester
CAS No.	1254175-55-7
Molecular Formula	C₁₆H₂₀O₄S
Molecular Weight	308.39 g/mol
Synonyms	Methyl (2E)-2-(Cyclopentylidene)-2-[4-(Methylsulfonyl)phenyl]acetate; 4-(Methylsulfonyl)benzeneacetic Acid, 2-(Cyclopentylmethylene)-, Methyl Ester, (2E)-; (E)-Methyl 2-(cyclopentylidene)-2-(4-(methylsulfonyl)phenyl)acetate; Methyl (E)-2-(cyclopentylmethylene)-4-(methylsulfonyl)benzeneacetate; (2E)-2-(Cyclopentylidene)-4-(Methylsulfonyl)benzeneacetic Acid Methyl Ester
EINECS	Contact for details

Quality Control

Our (2E)-2-(Cyclopentylmethylene)-4-(Methylsulfonyl)Benzeneacetic Acid Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 0.5%

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