Description

4-Phenylbutyl Isocyanate is a versatile aromatic isocyanate monomer used as a key building block in the synthesis of specialized polymers and fine chemicals. Its reactive isocyanate group enables the formation of urethane, urea, and amide linkages, making it valuable for creating materials with tailored properties. This compound is particularly relevant for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise molecular structures for high-performance applications.

Application

• Pharmaceutical Intermediates: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring a phenylbutyl moiety.
• Agrochemical Synthesis: Used in the production of specialized herbicides, fungicides, and pesticides where its aromatic structure contributes to biological activity.
• Polymer Modification: Acts as a cross-linking agent or chain extender in polyurethane and polyurea systems to enhance mechanical strength, chemical resistance, or adhesion properties.
• Surface Coating Formulations: Incorporated into high-performance coatings and adhesives to improve durability, flexibility, and substrate bonding.
• Chemical Research & Development: Employed in organic synthesis for constructing complex molecules, including heterocycles and functionalized polymers, in academic and industrial R&D labs.
• Specialty Material Production: Utilized in the creation of advanced materials such as liquid crystals, organic semiconductors, and engineered resins.

Basic Information

Product Name	4-Phenylbutyl Isocyanate
CAS No.	77725-08-7
Molecular Formula	C11H13NO
Molecular Weight	175.23 g/mol
Synonyms	4-Phenylbutyl isocyanate; (4-Phenylbutyl)isocyanate; 4-Phenylbutan-1-yl isocyanate; 1-Isocyanato-4-phenylbutane; γ-Phenylbutyl isocyanate; NSC 406925; Phenylbutyl isocyanate; 4-Phenyl-n-butylisocyanate
EINECS	Contact for details

Quality Control

Our 4-Phenylbutyl Isocyanate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to verify identity, potency, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is 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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture. Keep away from heat, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density (at 20°C)	~1.04 g/cm³

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