Description

4-Methoxyphenyl Isocyanate is a versatile aromatic isocyanate monomer essential for introducing the 4-methoxyphenyl moiety into advanced chemical structures. Its high reactivity makes it a critical building block for synthesizing specialized polymers and fine chemicals with tailored properties. This compound is primarily sought by manufacturers in the agrochemical, pharmaceutical, and specialty polymer industries for developing high-performance products.

Application

• Agrochemical Intermediates: Key precursor in the synthesis of modern pesticides, herbicides, and fungicides, leveraging its aromatic structure for enhanced bioactivity.
• Pharmaceutical Synthesis: Used to create urethane linkages in drug candidates and active pharmaceutical ingredients (APIs), particularly for compounds requiring specific pharmacokinetic profiles.
• Polyurethane & Polymer Modification: Serves as a reactive monomer for producing specialty polyurethanes, coatings, adhesives, and elastomers with improved light stability and mechanical properties.
• Cross-linking Agent: Employed in the production of high-performance resins, films, and composite materials where controlled cross-linking density is required.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing ureas, carbamates, and other nitrogen-containing heterocycles in R&D laboratories.

Basic Information

Product Name	4-Methoxyphenyl Isocyanate
CAS No.	5416-93-3
Molecular Formula	C8H7NO2
Molecular Weight	149.15 g/mol
Synonyms	p-Methoxyphenyl Isocyanate; 4-Methoxybenzenisocyanate; 1-Isocyanato-4-methoxybenzene; 4-Methoxyphenylcarbimide; Anisoyl Isocyanate; NSC 403124; p-Anisyl Isocyanate; 4-Methoxyphenyl Mustard Oil
EINECS	226-541-3

Quality Control

Our 4-Methoxyphenyl Isocyanate is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is subjected to comprehensive analytical testing, including chromatographic purity analysis and identity confirmation. A detailed Certificate of Analysis (COA) documenting assay, impurity profile, and physical characteristics is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from moisture and polymerization. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~1.15 g/cm³
Refractive Index (n20D)	~1.560

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