Description

2-(4-Aminophenoxy)Ethyl Hydrogen Sulphate is an important organic intermediate featuring both an aromatic amine and a sulfate ester functional group. This bifunctional structure makes it a versatile building block for the synthesis of more complex molecules, particularly in the production of dyes, pigments, and specialty polymers. It is primarily sought after by manufacturers in the fine chemical, pharmaceutical, and advanced material sectors for its role in creating functionalized compounds.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of reactive dyes, acid dyes, and organic pigments, contributing to color fastness and molecular bonding with substrates.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs), especially in compounds requiring a sulfated phenolic ether linkage.
• Polymer Modification: Used to introduce sulfonate groups or aromatic amine sites into polymer chains, enhancing properties like hydrophilicity, dyeability, or cross-linking potential.
• Liquid Crystal and OLED Material Production: Employed in the synthesis of specialized monomers for advanced electronic displays and optoelectronic devices.
• Cross-linking Agent: Functions in the formulation of resins, adhesives, and coatings where its dual functionality can promote curing and network formation.
• Research & Development: A valuable reagent in organic chemistry R&D for constructing novel molecular architectures in academic and industrial laboratories.

Basic Information

Product Name	2-(4-Aminophenoxy)Ethyl Hydrogen Sulphate
CAS No.	40184-38-1
Molecular Formula	C8H11NO5S
Molecular Weight	233.24 g/mol
Synonyms	2-(4-Aminophenoxy)ethyl sulfate; 4-(2-Sulfooxyethoxy)aniline; Ethanol, 2-(4-aminophenoxy)-, hydrogen sulfate; 2-(p-Aminophenoxy)ethyl hydrogen sulfate; 4-Aminophenyl 2-sulfooxyethyl ether; Amino PES intermediate; APES
EINECS	Contact for details

Quality Control

Our production of 2-(4-Aminophenoxy)Ethyl Hydrogen Sulphate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and titration to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with 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 area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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