Description

Thiosulfuric Acid (H2S2O3), S-[2-Amino-5-(Dimethylamino) Phenyl] Ester is a specialized organosulfur compound with a unique chemical structure that combines a thiosulfate moiety with an aromatic amine group. This compound is valued in advanced chemical synthesis for its role as a versatile sulfur-transfer reagent and a key intermediate in the development of functional dyes, photographic chemicals, and pharmaceutical agents. It is primarily sought by research institutions and industrial manufacturers in the fine chemicals, agrochemical, and specialty materials sectors for creating novel molecules with specific optical or biological activities.

Application

• Photographic Chemical Intermediate: Used in the synthesis of specialized developers, sensitizers, and dye-forming couplers for color photography and imaging films.
• Functional Dye Synthesis: Serves as a critical precursor for manufacturing cationic dyes, fluorescent markers, and other chromophores with specific light-absorption properties.
• Pharmaceutical Research Intermediate: Employed in medicinal chemistry for the construction of complex heterocyclic scaffolds and sulfur-containing drug candidates.
• Agrochemical Active Ingredient Synthesis: Acts as a building block in the production of novel pesticides and herbicides that require specific sulfur-based functional groups.
• Polymer Modification Agent: Utilized to introduce sulfur or amine functionalities into polymer chains to alter material properties like adhesion or conductivity.
• Analytical Reagent: May be used as a specialized reagent in analytical chemistry for the detection or quantification of specific metal ions.

Basic Information

Product Name	Thiosulfuric Acid (H2S2O3), S-[2-Amino-5-(Dimethylamino) Phenyl] Ester
CAS No.	43035-11-6
Molecular Formula	C8H12N2O3S2
Molecular Weight	248.32 g/mol
Synonyms	S-(2-Amino-5-(dimethylamino)phenyl) thiosulfate; 2-Amino-5-(dimethylamino)phenyl thiosulfuric acid ester; 4-(Dimethylamino)-2-aminophenyl thiosulfate; H2S2O3 S-[2-Amino-5-(dimethylamino)phenyl] ester; Thiosulfuric acid S-ester with 2-amino-5-(dimethylamino)phenol; 43035-11-6; Amino-dimethylaminophenyl thiosulfate
EINECS	Contact for details

Quality Control

Our production of Thiosulfuric Acid (H2S2O3), S-[2-Amino-5-(Dimethylamino) Phenyl] Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity assessment and spectroscopic methods for structural confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory documentation 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 (typically 15-25°C). This compound is light-sensitive and may be hygroscopic; therefore, containers should be kept sealed under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent degradation and moisture absorption.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details
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.