Description

Thiosulfuric Acid o-Sodium S-Benzyl Ester Salt is a specialized organosulfur compound with significant utility as a chemical intermediate. Its unique structure, featuring a benzyl-protected thiosulfate group, makes it a valuable reagent for controlled sulfur transfer and functional group modification in synthetic chemistry. This product is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfur-containing motifs or create novel molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfonamide, disulfide, or other sulfur-based functional groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the benzyl thiosulfate moiety acts as a protected thiol equivalent or a sulfurating agent.
• Peptide Chemistry & Bioconjugation: Serves as a reagent for introducing disulfide linkages or for the site-specific modification of proteins and peptides in drug discovery and biochemical research.
• Polymer & Material Science: Employed as a modifier or cross-linking agent in the development of specialty polymers, resins, and functional materials with tailored properties.
• Organic Synthesis Reagent: A versatile reagent for nucleophilic substitution reactions, as a sulfur source in transition metal-catalyzed couplings, and for the preparation of other sulfur derivatives.
• Chemical Research: Fundamental research tool in methodological development and exploration of new synthetic pathways involving sulfur chemistry.

Basic Information

Product Name	Thiosulfuric Acid o-Sodium S-Benzyl Ester Salt
CAS No.	6313-36-6
Molecular Formula	C7H7NaO3S2
Molecular Weight	226.24 g/mol
Synonyms	Sodium S-Benzyl Thiosulfate; Benzylthiosulfuric Acid Sodium Salt; Sodium Benzyl Thiosulfate; Bunte Salt (Benzyl derivative); S-Benzyl Sodium Thiosulfate; Benzyl Thiosulfuric Acid Sodium Salt; o-Sodium S-Benzyl Thiosulfate; Benzyl Sodium Sulfothioate
EINECS	Contact for details

Quality Control

Our production of Thiosulfuric Acid o-Sodium S-Benzyl Ester Salt adheres to stringent quality management protocols. Each batch is characterized and tested to ensure identity, purity, and consistency, meeting the high standards required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics 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). This material is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider using a desiccator or inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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