Description

Isocyanic Acid 3,4-Dichlorophenyl Ester is a versatile and reactive chemical intermediate primarily used in the synthesis of advanced agrochemicals and pharmaceuticals. Its value lies in its ability to introduce the 3,4-dichlorophenyl isocyanate moiety, a key building block for compounds with potent biological activity. This product is essential for R&D and production teams in the agrochemical, pharmaceutical, and specialty chemical industries seeking to develop new active ingredients or optimize existing synthetic routes.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of herbicides, fungicides, and insecticides, where the 3,4-dichlorophenyl group enhances efficacy.
• Pharmaceutical Synthesis: Used as a building block for creating active pharmaceutical ingredients (APIs), particularly in urea and carbamate-based drug candidates.
• Polymer Modification: Serves as a reactive monomer or cross-linking agent in the production of specialty polyurethanes and coatings with specific performance properties.
• Chemical Research: Employed in academic and industrial laboratories for the development of novel heterocyclic compounds and material science applications.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of complex colorants and functional dyes.

Basic Information

Product Name	Isocyanic Acid 3,4-Dichlorophenyl Ester
CAS No.	102-36-3
Molecular Formula	C7H3Cl2NO
Molecular Weight	187.01 g/mol
Synonyms	3,4-Dichlorophenyl isocyanate; 1,2-Dichloro-4-isocyanatobenzene; 3,4-DCI; Isocyanic acid, (3,4-dichlorophenyl) ester; (3,4-Dichlorophenyl)carbimide; 3,4-Dichlorophenylcarbylamine; NSC 405124
EINECS	203-025-4

Quality Control

Our Isocyanic Acid 3,4-Dichlorophenyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profile analysis via GC/HPLC, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong acids, bases, alcohols, and amines. Due to its reactivity and sensitivity to moisture, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/Titration)	≥ 98.0%
3,4-Dichloroaniline	≤ 0.5%
Water Content (KF)	≤ 0.1%

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