Description

4-(Methylthio)Phenyl Isocyanate is a versatile aromatic isocyanate monomer featuring a methylthio functional group. This compound is a critical building block for synthesizing advanced polymers and fine chemicals, offering unique reactivity and property modification capabilities. It is primarily utilized by R&D chemists and production engineers in the agrochemical, pharmaceutical, and specialty polymer industries to develop novel products with enhanced performance characteristics.

Application

• Agrochemical Intermediates: A key precursor in the synthesis of modern pesticides, herbicides, and fungicides, where it is used to create active ingredients with specific biological activity.
• Pharmaceutical Synthesis: Serves as a vital reagent for constructing pharmacologically active molecules, particularly in the development of drugs targeting specific enzymes or receptors.
• Polyurethane & Polymer Modification: Used to produce specialty polyurethanes, polyureas, and other polymers, imparting properties like chemical resistance, adhesion, or specific degradation profiles.
• Cross-linking Agent: Functions as an effective cross-linker for coatings, adhesives, and elastomers, enhancing their thermal stability, mechanical strength, and durability.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new synthetic pathways and creating novel chemical entities with tailored functionalities.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of specialized dyes and pigments, contributing to color fastness and stability.

Basic Information

Product Name	4-(Methylthio)Phenyl Isocyanate
CAS No.	1632-84-4
Molecular Formula	C8H7NOS
Molecular Weight	165.21 g/mol
Synonyms	4-(Methylsulfanyl)phenyl isocyanate; 4-(Methylmercapto)phenyl isocyanate; p-(Methylthio)phenyl isocyanate; 1-Isocyanato-4-(methylthio)benzene; 4-Methylsulfanylphenyl isocyanate; Isocyanic acid, 4-(methylthio)phenyl ester; NSC 163977
EINECS	Contact for details

Quality Control

Our production of 4-(Methylthio)Phenyl Isocyanate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography and spectroscopy, to verify identity and assay. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as alcohols, amines, and moisture. Due to its reactivity, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent degradation and polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%

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