Description

m-Phenylenediamine Sulfate is a stabilized salt form of the important aromatic diamine, meta-phenylenediamine. This formulation is critical for ensuring consistent performance and extended shelf-life in sensitive chemical synthesis, where the free base form may be prone to degradation. It serves as a key intermediate for the production of high-performance polymers, dyes, pigments, and specialty chemicals across multiple industries.

Application

• Polymer & Resin Intermediate: A crucial monomer for the synthesis of high-performance polyamides, polyimides, and epoxy curing agents.
• Dye & Pigment Manufacturing: Used as a primary building block for azo dyes, hair dyes, and advanced organic pigments.
• Pharmaceutical Synthesis: Acts as a versatile intermediate in the production of certain active pharmaceutical ingredients (APIs).
• Corrosion Inhibitor Formulation: Employed in the development of specialized corrosion inhibitors for industrial applications.
• Rubber & Tire Chemicals: Used in the manufacture of antioxidants and accelerators for the rubber industry.
• Photographic Chemicals: Serves as a component in color developing agents for photographic films and papers.
• Research & Development: A valuable reagent in organic synthesis and material science research laboratories.

Basic Information

Product Name	m-Phenylenediamine Sulfate
CAS No.	25723-55-1
Molecular Formula	C6H8N2·H2SO4
Molecular Weight	236.22 g/mol
Synonyms	1,3-Phenylenediamine sulfate; 1,3-Benzenediamine sulfate; m-Phenylenediamine monosulfate; meta-Phenylenediamine sulfate; 1,3-Diaminobenzene sulfate; MPD sulfate; Developer C sulfate; Ursol D sulfate
EINECS	Contact for details

Quality Control

Our m-Phenylenediamine Sulfate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency 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 nature, the container must be kept tightly sealed after initial opening to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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