Description

Succinic Acid, Epoxy-, Dihydrazide (7Ci) is a specialized, high-purity chemical intermediate featuring both epoxy and dihydrazide functional groups. This unique bifunctional structure makes it a valuable cross-linking agent and curing agent for advanced polymer systems. It is essential for manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance thermal stability and mechanical properties. The compound is supplied with full traceability under CAS No. 89303-92-4.

Application

• Epoxy Resin Curing Agent: Functions as a latent hardener for one-component epoxy formulations, providing excellent shelf life and controlled cure profiles for high-performance coatings and composites.
• Cross-linking Agent for Polymers: Used to modify and cross-link polyurethane, polyester, and acrylic resins to improve their chemical resistance, hardness, and thermal stability.
• Adhesive Formulations: Imparts strong adhesion and durability in structural and specialty adhesive systems for automotive, aerospace, and electronics assembly.
• Powder Coatings: A key component in carboxyl-functional polyester resins for powder coatings, contributing to smooth finish and weatherability.
• Textile & Leather Auxiliaries: Serves as a cross-linker in resin finishes for textiles and leather to enhance wrinkle resistance, durability, and water repellency.
• Pharmaceutical & Agro-chemical Intermediates: Utilized in the synthesis of active ingredients and other fine chemicals requiring its specific reactive sites.

Basic Information

Product Name	Succinic Acid, Epoxy-, Dihydrazide (7Ci)
CAS No.	89303-92-4
Molecular Formula	C6H10N4O4
Molecular Weight	202.17 g/mol
Synonyms	Epoxysuccinic acid dihydrazide; 1,2-Epoxy-1,2,3,4-butanetetracarboxylic acid dihydrazide; Tetrahydro-3,6-epoxy-1,2,4,5-tetrazine-3,4,5,6-tetracarboxylic acid dihydrazide; Epoxy succinic dihydrazide; ESDH; Curing Agent EH-561; Crosslinking agent for carboxyl groups
EINECS	Contact for details

Quality Control

Every batch of Succinic Acid, Epoxy-, Dihydrazide is manufactured under a strict quality management system. We perform rigorous in-process and final testing to ensure consistent purity, reactivity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve stability and prevent degradation. Keep away from strong 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%
Residue on Ignition	≤ 0.1%
Epoxy Value	Contact for details
Hydrazine Content	Contact for details

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