Description

Isophthalic Dihydrazide is a high-purity organic chemical intermediate characterized by its dihydrazide functional groups. This compound is valued for its role as a key cross-linking and chain-extending agent in the synthesis of high-performance polymers. It is essential for manufacturers in the polymer, specialty chemical, and coating industries seeking to enhance material properties such as thermal stability and mechanical strength. The product is supplied as a fine, white to off-white powder.

Application

• Polymer Synthesis: A crucial monomer and chain extender in the production of polyurethanes, polyamides, and polyhydrazides.
• Cross-linking Agent: Used to create thermally stable, high-performance cross-linked networks in epoxy resins and other thermosetting polymers.
• Pharmaceutical Intermediate: Serves as a building block in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Adhesive & Sealant Formulations: Imparts improved adhesion and durability in high-specification industrial adhesives and sealants.
• Coating Additive: Enhances the hardness, chemical resistance, and weatherability of industrial and protective coatings.
• Gas Barrier Films: Used in the development of polyamide films with excellent oxygen barrier properties for packaging.
• Flame Retardant Synergist: Can be incorporated into polymer systems to improve flame retardant performance.
• Analytical Chemistry: Employed as a derivatization agent for the analysis of carbonyl compounds.

Basic Information

Product Name	Isophthalic Dihydrazide
CAS No.	2760-98-7
Molecular Formula	C8H10N4O2
Molecular Weight	194.19 g/mol
Synonyms	1,3-Benzenedicarboxylic acid, 1,3-dihydrazide; Isophthalic acid dihydrazide; m-Phthalic dihydrazide; IPDH; Isophthaloyl dihydrazide; 1,3-Dihydrazide benzene-1,3-dicarboxylic acid; m-Phenylenedicarboxylic acid dihydrazide
EINECS	220-415-1

Quality Control

Our Isophthalic Dihydrazide is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and fine chemical synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment to guarantee consistent quality and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize quality degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	220 - 225 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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