Description

p-Tolyl Isocyanate is a versatile aromatic isocyanate monomer essential for synthesizing high-performance polymers and specialty chemicals. Its reactivity with compounds containing active hydrogen atoms makes it a critical building block for creating materials with tailored properties. This compound is particularly valuable for manufacturers in the agrochemical, pharmaceutical, and advanced materials sectors seeking to develop custom polyurethanes, ureas, and carbamates.

Application

• Agrochemical Intermediates: Key precursor in the synthesis of phenylurea herbicides and other crop protection agents.
• Pharmaceutical Synthesis: Used as a reagent for introducing the tolyl carbamoyl moiety in active pharmaceutical ingredients (APIs).
• Polyurethane & Coatings: Serves as a cross-linking agent and hard segment component in specialty polyurethane coatings, adhesives, and elastomers requiring specific chemical resistance.
• Chemical Intermediate: Fundamental building block for producing carbamates, ureas, and other isocyanate-derived fine chemicals.
• Polymer Modification: Employed to functionalize polymers and resins, enhancing their adhesion, durability, or compatibility.
• Research & Development: Utilized in laboratories for method development and the creation of novel compounds in material science.

Basic Information

Product Name	p-Tolyl Isocyanate
CAS No.	622-58-2
Molecular Formula	C8H7NO
Molecular Weight	133.15 g/mol
Synonyms	4-Methylphenyl isocyanate; 4-Tolyl isocyanate; p-Methylphenyl isocyanate; 1-Isocyanato-4-methylbenzene; Isocyanic acid, 4-methylphenyl ester; 4-Toluenyl isocyanate; NSC 9405; PTI
EINECS	210-743-7

Quality Control

Our p-Tolyl Isocyanate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical testing, including assay by GC/HPLC and impurity profiling, to meet the stringent requirements of our industrial and research partners. A Certificate of Analysis (COA) detailing all specifications is available for every shipment upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and polymerization. Keep away from heat, 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
Assay (GC/HPLC)	≥ 98.0%
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.1%
p-Toluidine (HPLC)	≤ 0.5%

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