Description

(E)-3-Methylpent-2-Enedioic Acid CAS NO 372-42-9 is a high-purity, unsaturated dicarboxylic acid derivative with significant utility as a versatile chemical intermediate. Its unique structure, featuring both a carboxylic acid group and an alkene moiety, makes it a valuable building block for synthesizing complex molecules. This compound is particularly relevant for research and development chemists and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to introduce specific functional groups into their products.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a dicarboxylic acid backbone.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, where its reactive sites allow for structural diversification.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent to introduce carboxylic acid functionality into polymers, enhancing properties like adhesion, solubility, or reactivity.
• Organic Synthesis Building Block: Employed in research laboratories for Michael addition reactions, Diels-Alder cycloadditions, and other transformations to create novel organic compounds.
• Ligand & Chelating Agent Precursor: Useful for synthesizing specialized ligands used in catalysis or metal ion sequestration applications.
• Fine Chemical Production: Integral to the manufacture of dyes, flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	(E)-3-Methylpent-2-Enedioic Acid
CAS No.	372-42-9
Molecular Formula	C6H8O4
Molecular Weight	144.13 g/mol
Synonyms	(E)-3-Methyl-2-pentenedioic acid; trans-3-Methylglutaconic acid; 3-Methylglutaconic acid; 3-Methyl-2-pentenedioic acid; Glutaconic acid, 3-methyl-; (2E)-3-Methylpent-2-enedioic acid; NSC 163045
EINECS	206-749-5

Quality Control

Our (E)-3-Methylpent-2-Enedioic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates for regulated industries.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which may affect quality. Keep away from incompatible materials such as strong bases and oxidizing agents.

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	< 20 ppm

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