Description

2-Aminoethanethiosulfonic S-Acid is a specialized organosulfur compound featuring both amino and thiosulfonic acid functional groups, making it a versatile building block in advanced chemical synthesis. Its unique structure is critical for introducing sulfur-containing moieties and modifying biomolecules, offering significant value in research and fine chemical manufacturing. This compound is essential for pharmaceutical researchers, agrochemical developers, and material scientists working on ligand synthesis, peptide modification, and the development of novel chemical probes.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting enzymes or receptors where sulfur-based functional groups are crucial for activity.
• Bioconjugation & Peptide Modification: Used to introduce thiol-reactive or labeling groups onto peptides, proteins, and other biomolecules for research, diagnostics, and therapeutic applications.
• Ligand Synthesis for Catalysis: Acts as a building block for creating specialized ligands used in transition metal catalysis, enhancing reaction selectivity and efficiency.
• Agrochemical Research: Employed in the development of new herbicides, fungicides, or plant growth regulators that utilize its unique sulfur chemistry.
• Material Science: Utilized in the surface functionalization of polymers or nanoparticles to impart specific chemical properties or improve biocompatibility.
• Chemical Biology Probes: Integral in designing activity-based probes and sensors for detecting enzymatic activity or specific biomolecules in complex systems.

Basic Information

Product Name	2-Aminoethanethiosulfonic S-Acid
CAS No.	2937-54-4
Molecular Formula	C₂H₇NO₃S₂
Molecular Weight	157.21 g/mol
Synonyms	2-Aminoethanesulfonothioic S-Acid; Aminoethylthiosulfonic Acid; 2-Aminoethyl Thiosulfate; Thiosulfuric Acid S-(2-Aminoethyl) Ester; Cysteamine-S-sulfonic Acid; Taurine Thioanalogue; 2-Amino-1-ethanethiosulfonic Acid; β-Aminoethyl Thiosulfonic Acid
EINECS	220-922-7

Quality Control

Every batch of 2-Aminoethanethiosulfonic S-Acid is manufactured under a strict quality management system and undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and detailed Certificates of Analysis (COA) with each shipment, which include data from HPLC, NMR, and titration methods. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your critical R&D and production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric 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%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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