Description

Benzyl Hydrogen 2-Butenedioate is a versatile chemical intermediate belonging to the class of benzyl esters of unsaturated dicarboxylic acids. This compound is valued for its reactive double bond and ester functionality, making it a key building block in the synthesis of specialty polymers, resins, and fine chemicals. It is primarily sought after by manufacturers in the polymer, coatings, and pharmaceutical intermediate industries for its ability to introduce specific properties into final products.

Application

• Polymer & Resin Modification: Acts as a reactive monomer or cross-linking agent in the production of specialty acrylics, alkyds, and unsaturated polyester resins to enhance flexibility, adhesion, or curing properties.
• Pharmaceutical Intermediates: Serves as a crucial synthon in the multi-step synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Coatings & Inks: Used in the formulation of high-performance industrial coatings, printing inks, and adhesives to improve film formation and durability.
• Fine Chemical Synthesis: Employed as a building block in organic synthesis for creating complex molecules used in agrochemicals, flavors, and fragrances.
• Research & Development: Utilized in academic and industrial R&D laboratories for exploring new chemical reactions and material science applications.

Basic Information

Product Name	Benzyl Hydrogen 2-Butenedioate
CAS No.	93919-06-3
Molecular Formula	C11H10O4
Molecular Weight	206.19 g/mol
Synonyms	Benzyl hydrogen fumarate; Monobenzyl fumarate; Fumaric acid monobenzyl ester; Benzyl hemifumarate; 2-Butenedioic acid (E)-, monobenzyl ester; (2E)-4-(Benzyloxy)-4-oxobut-2-enoic acid; Benzyl (2E)-4-carboxybut-2-enoate
EINECS	Contact for details

Quality Control

Our Benzyl Hydrogen 2-Butenedioate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The product should be handled in accordance with good industrial hygiene and safety practice.

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	≤ 0.5%
Residue on Ignition	≤ 0.1%

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