Description

2-Methylene-Pentanedioic Acid is a versatile, unsaturated dicarboxylic acid derivative that serves as a valuable building block in organic synthesis. Its unique structure, featuring a reactive methylene group adjacent to the carboxylic acid functionalities, makes it a critical intermediate for creating complex molecules with tailored properties. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to introduce specific functional groups and modify material characteristics.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring unsaturated acid moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a cross-linking agent or comonomer to enhance the thermal stability and mechanical properties of specialty polymers and coatings.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, Michael additions, and other C-C bond-forming reactions to construct complex organic frameworks.
• Ligand & Chelating Agent Precursor: Useful for synthesizing novel ligands for catalysis and metal chelation applications.
• Fine Chemical Production: Intermediate in the manufacture of flavors, fragrances, and other high-value fine chemicals.

Basic Information

Product Name	2-Methylene-Pentanedioic Acid
CAS No.	3621-79-2
Molecular Formula	C6H8O4
Molecular Weight	144.13 g/mol
Synonyms	2-Methyleneglutaric Acid; 2-Methylene-1,5-pentanedioic Acid; Glutaconic Acid (specific isomer); 3-Carboxy-3-butenoic Acid; 2-Methylidenepentanedioic Acid; Itaconic Acid Isomer; 2-Methyleneglutarate; 3621-79-2
EINECS	Contact for details

Quality Control

Our 2-Methylene-Pentanedioic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and reliability for your critical processes.

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). 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 crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 10 ppm
Residue on Ignition	≤ 0.1%

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