Description

Toluene-4-Sulfinic Acid Lithium Salt CAS NO 16844-27-2 is an organosulfur compound and a versatile lithium salt derivative of p-toluenesulfinic acid. It serves as a valuable intermediate and reagent in advanced organic synthesis, particularly in the formation of sulfones and other sulfur-containing compounds. This product is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfinyl functionalities.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates containing sulfone or sulfoxide moieties.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where the sulfinic acid salt group is incorporated.
• Polymer & Material Science: Acts as a monomer or modifying agent in the development of specialty polymers, including sulfonated materials for ion-exchange membranes.
• Organic Synthesis Reagent: Employed in nucleophilic addition reactions and as a source of the sulfinate anion for constructing C-S bonds in complex molecule assembly.
• Ligand & Catalyst Preparation: Useful in the preparation of chiral sulfinyl ligands for asymmetric catalysis and metal complex formation.
• Chemical Research: A fundamental reagent for methodological development in synthetic organic chemistry within academic and industrial R&D settings.

Basic Information

Product Name	Toluene-4-Sulfinic Acid Lithium Salt
CAS No.	16844-27-2
Molecular Formula	C7H7LiO2S
Molecular Weight	162.13 g/mol
Synonyms	4-Methylbenzenesulfinic Acid Lithium Salt; p-Toluenesulfinic Acid Lithium Salt; Lithium p-Toluenesulfinate; Lithium 4-Methylbenzenesulfinate; Lithium Tosylinate; Toluene-p-sulfinic Acid Lithium Salt; Benzenesulfinic Acid, 4-methyl-, lithium salt; Lithium 4-toluenesulfinate
EINECS	240-876-8

Quality Control

Our Toluene-4-Sulfinic Acid Lithium Salt is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (by titration or HPLC), identification (IR), and impurity profiling to ensure it meets high-purity standards suitable for synthetic applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

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 product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere or in a desiccator after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1 %

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