Description

4-Isocyanobenzophenone CAS NO 3128-83-4 is a versatile aromatic isocyanate derivative, serving as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both an isocyanate and a ketone group, makes it a valuable precursor for creating complex molecular architectures. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for developing novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with benzophenone or urea/thiourea backbones.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and pesticides, leveraging its reactive isocyanate group.
• Polymer & Material Science: Acts as a cross-linking agent or monomer in the production of specialty polyurethanes, polyureas, and high-performance resins.
• Chemical Research & Development: Essential reagent for constructing heterocyclic compounds, dyes, and photoactive materials in academic and industrial R&D labs.
• Ligand & Catalyst Preparation: Serves as a starting material for synthesizing specialized ligands used in catalysis and coordination chemistry.

Basic Information

Product Name	4-Isocyanobenzophenone
CAS No.	3128-83-4
Molecular Formula	C14H9NO2
Molecular Weight	223.23 g/mol
Synonyms	4-Benzoylisocyanobenzene; p-Isocyanobenzophenone; 4-Isocyanophenyl phenyl ketone; Benzophenone-4-isocyanate; (4-Isocyanophenyl)(phenyl)methanone; 1,1'-Biphenyl-4-isocyanate, 4'-benzoyl-; 4-Isocyanodiphenyl ketone
EINECS	221-500-6

Quality Control

Our 4-Isocyanobenzophenone is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC purity, identity confirmation by FT-IR and NMR, and impurity profiling. A Certificate of Analysis (COA) is supplied with each batch, detailing all relevant specifications. Our quality management system supports compliance with cGMP and ISO standards for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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