Description

4-Isothiazolecarboxylic Acid, 3,5-Bis(Methylthio)- is a specialized heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its unique functionalized isothiazole scaffold, which serves as a versatile precursor for developing novel compounds with tailored properties. This high-purity intermediate is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to create new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting new therapeutic agents.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides due to its bioactive heterocyclic structure.
• Material Science Research: Serves as a building block for creating specialized polymers, ligands, or functional materials with specific electronic or chemical properties.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new synthetic methodologies and constructing complex molecular architectures.
• Ligand and Catalyst Development: The carboxylic acid and thioether functionalities make it a candidate for designing novel chelating ligands or organocatalysts.

Basic Information

Product Name	4-Isothiazolecarboxylic Acid, 3,5-Bis(Methylthio)-
CAS No.	4886-15-1
Molecular Formula	C6H7NO2S3
Molecular Weight	221.32 g/mol
Synonyms	3,5-Bis(methylthio)-4-isothiazolecarboxylic acid; 3,5-Bis(methylthio)isothiazole-4-carboxylic acid; 4-Carboxy-3,5-bis(methylthio)isothiazole; 3,5-Dimethylthio-4-isothiazolecarboxylic Acid; 4886-15-1; 4-Isothiazolecarboxylic acid, 3,5-bis(methylthio)-; Isothiazole-4-carboxylic acid, 3,5-bis(methylthio)-
EINECS	Contact for details

Quality Control

Our 4-Isothiazolecarboxylic Acid, 3,5-Bis(Methylthio)- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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