Description

4-(n-Ethyl-n-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate is a specialized organic salt primarily used as a key intermediate and color developer in advanced chemical synthesis. This compound matters for its critical role in producing high-performance dyes, pigments, and photographic chemicals where precise molecular structure is required for functionality. It is needed by manufacturers in the hair dye, photographic, and specialty chemical industries for research, development, and production processes.

Application

• Primary Intermediate for Oxidative Hair Dyes: A key coupler or developer component in permanent hair coloring formulations.
• Photographic Chemical: Used in the synthesis of color developers and dye couplers for photographic films and papers.
• Specialty Dye and Pigment Synthesis: Serves as a building block for creating azo dyes and other complex organic colorants.
• Chemical Research & Development: Employed as a reagent or intermediate in organic synthesis for novel compounds.
• Polymer Additive Precursor: Can be used to synthesize monomers or additives for specialized polymers.

Basic Information

Product Name	4-(n-Ethyl-n-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate
CAS No.	25646-77-9
Molecular Formula	C11H18N2O · H2SO4 or C11H20N2O5S
Molecular Weight	292.35 g/mol (for C11H20N2O5S)
Synonyms	4-(N-Ethyl-N-2-hydroxyethyl)-2-methyl-1,4-benzenediamine sulfate; 4-Amino-2-(N-ethyl-N-2-hydroxyethylamino)toluene sulfate; 2-Methyl-4-(ethyl(2-hydroxyethyl)amino)aniline sulfate; N-Ethyl-N-(2-hydroxyethyl)-2-methyl-p-phenylenediamine sulfate; 4-(Ethyl(2-hydroxyethyl)amino)-2-methylaniline sulfate; p-Phenylenediamine derivative; Oxidative dye intermediate; Color developer intermediate.
EINECS	Contact for details

Quality Control

Our 4-(n-Ethyl-n-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing key specifications are available for every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to light beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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