Description

Ethyl (E)-2-(5-Methyl-2-oxobenzofuran-3(2H)-ylidene)acetate is a high-purity, specialized organic compound belonging to the benzofuranone derivative class. This chemical serves as a critical synthetic intermediate and building block in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry research targeting various therapeutic areas.
• Agrochemical Research: Used in the development and synthesis of new active ingredients for crop protection products, such as herbicides and fungicides.
• Organic Synthesis Reagent: Serves as a versatile precursor for constructing complex heterocyclic compounds and fine chemicals in laboratory and pilot-scale production.
• Material Science Research: Investigated as a monomer or precursor for synthesizing specialized polymers and organic electronic materials.
• Chemical Reference Standard: Employed as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	Ethyl (E)-2-(5-Methyl-2-oxobenzofuran-3(2H)-ylidene)acetate
CAS No.	1440545-29-8
Molecular Formula	C₁₄H₁₄O₄
Molecular Weight	246.26 g/mol
Synonyms	Ethyl (E)-2-(5-methyl-2-oxo-2,3-dihydrobenzofuran-3-ylidene)acetate; (E)-Ethyl 2-(5-methyl-2-oxobenzofuran-3(2H)-ylidene)acetate; 3-(Ethoxycarbonylmethylene)-5-methylbenzofuran-2(3H)-one; 5-Methyl-3-[(ethoxycarbonyl)methylene]-2(3H)-benzofuranone; Ethyl (Z)-2-(5-methyl-2-oxo-2,3-dihydrobenzofuran-3-ylidene)acetate (isomer); 1440545-29-8
EINECS	Contact for details

Quality Control

Our Ethyl (E)-2-(5-Methyl-2-oxobenzofuran-3(2H)-ylidene)acetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a Certificate of Analysis (COA) with every shipment, detailing all specifications and test results to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.