Description

2-Aminoethanethiol p-Toluenesulfonate is a salt derivative of cysteamine, offering enhanced stability and handling properties compared to the free base. This compound serves as a critical building block and reagent in advanced organic synthesis, particularly for introducing protected thiol and amine functionalities. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of radioprotective agents, mucolytic drugs, and other therapeutic molecules.
• Peptide Synthesis & Modification: Used for introducing disulfide bonds or as a protecting group strategy for cysteine analogs in peptide chemistry.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating functional polymers with specific surface properties.
• Chemical Research & Development: A versatile reagent for exploring new synthetic pathways and creating novel chemical entities in academic and industrial R&D.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides, fungicides, and plant growth regulators.
• Bioconjugation: Useful in linker chemistry for attaching molecules to proteins, antibodies, or other biomolecules.

Basic Information

Product Name	2-Aminoethanethiol p-Toluenesulfonate
CAS No.	3037-04-5
Molecular Formula	C9H15NO3S2
Molecular Weight	249.35 g/mol
Synonyms	Cysteamine p-Toluenesulfonate; 2-Aminoethanethiol Tosylate; 2-Mercaptoethylamine p-Toluenesulfonate; β-Mercaptoethylamine Tosylate; Aminoethanethiol Tosylate; Cysteamine Tosylate Salt; 2-Amino-1-ethanethiol p-Toluenesulfonate; Thioethanolamine p-Toluenesulfonate
EINECS	221-247-3

Quality Control

Our 2-Aminoethanethiol p-Toluenesulfonate is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). This material is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider using an inert atmosphere. 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%
Melting Point	Contact for details
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.