Description

4-Chloro-3-Nitrophenyl Isocyanate is a versatile and reactive aromatic isocyanate building block, essential for synthesizing advanced chemical intermediates. Its core value lies in introducing both the isocyanate functional group and a nitro-chloro substituted aromatic ring into target molecules, enabling the creation of specialized polymers, agrochemicals, and pharmaceuticals. This compound is particularly critical for R&D chemists and production specialists in the pharmaceutical, agrochemical, and specialty polymer industries who require high-purity, reliable starting materials for complex synthesis.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing urea or carbamate linkages.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides, where its aromatic structure contributes to biological activity.
• Polymer & Resin Modifier: Serves as a cross-linking agent or chain extender in polyurethane and polyurea systems, enhancing material properties like hardness and chemical resistance.
• Chemical Research & Development: A valuable reagent for creating novel heterocyclic compounds, dyes, and other specialty chemicals in laboratory settings.
• Dye & Pigment Manufacturing: Acts as a precursor in the synthesis of complex azo dyes and organic pigments.

Basic Information

Product Name	4-Chloro-3-Nitrophenyl Isocyanate
CAS No.	40397-96-4
Molecular Formula	C7H3ClN2O3
Molecular Weight	198.56 g/mol
Synonyms	1-Chloro-4-isocyanato-2-nitrobenzene; 3-Nitro-4-chlorophenyl isocyanate; 4-Chloro-3-nitrobenzenisocyanate; 2-Nitro-4-chlorophenyl isocyanate; Isocyanic acid, 4-chloro-3-nitrophenyl ester; (4-Chloro-3-nitrophenyl)isocyanate
EINECS	Contact for details

Quality Control

Every batch of 4-Chloro-3-Nitrophenyl Isocyanate is manufactured and tested under a strict quality management system. Our products undergo rigorous quality testing, including chromatographic purity analysis and identity confirmation, to ensure compliance with industry standards and customer specifications. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details

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