Description

(2-Mercaptoethyl)Ammonium Hydrogen Maleate is a specialized organic salt combining a thiol-functionalized ammonium cation with a maleate anion. This compound matters as a versatile intermediate and additive, valued for its dual functionality from the reactive thiol group and the ionic maleate moiety. It is needed by industries such as polymer synthesis, pharmaceuticals, and specialty chemical manufacturing for applications including cross-linking, catalysis, and as a building block for more complex molecules.

Application

• Polymer Modification & Cross-linking Agent: Utilized in the production of specialty polymers, resins, and elastomers where the thiol group facilitates cross-linking reactions to enhance thermal stability and mechanical properties.
• Pharmaceutical Intermediate: Serves as a key synthetic building block in the development of active pharmaceutical ingredients (APIs), particularly those requiring thiol or carboxylic acid functionality.
• Bioconjugation Reagent: Employed in biochemical research and diagnostic kit development for coupling reactions, leveraging the thiol group for attaching molecules to proteins or other biomolecules.
• Catalyst & Co-catalyst in Organic Synthesis: Acts as a catalyst or ligand precursor in various organic transformations due to the nucleophilic and metal-coordinating properties of the mercapto group.
• Corrosion Inhibitor Formulation: Incorporated into formulations for metal surface treatment and cooling systems, where it forms protective layers on metal surfaces.
• Hair Care & Cosmetic Additive: Used in permanent wave solutions and hair straightening products as a reducing agent that breaks disulfide bonds in keratin.

Basic Information

Product Name	(2-Mercaptoethyl)Ammonium Hydrogen Maleate
CAS No.	93965-19-6
Molecular Formula	C6H11NO4S
Molecular Weight	193.22 g/mol
Synonyms	2-Aminoethanethiol Hydrogen Maleate; Ammonium (2-mercaptoethyl) hydrogen maleate; 2-Mercaptoethylamine Maleate Salt; Cysteamine Hydrogen Maleate; Thioethanolamine Maleate; Aminoethanethiol Maleate; β-Mercaptoethylammonium Hydrogen Maleate; (2-Thioethyl)ammonium Hydrogen Maleate
EINECS	Contact for details

Quality Control

Our (2-Mercaptoethyl)Ammonium Hydrogen Maleate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing specifications for assay, related substances, and physical parameters. We adhere to cGMP principles where applicable to support its use in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) and minimize exposure to air and moisture. 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%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Heavy Metals	≤ 20 ppm

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