Description

3,4-Dichlorophenyl Isothiocyanate is a versatile and reactive organic building block belonging to the aryl isothiocyanate class. Its high-purity form is critical for synthesizing advanced chemical intermediates with precision and reliability. This compound is essential for research and development laboratories and industrial-scale manufacturers in the agrochemical and pharmaceutical sectors, where it serves as a key precursor for active ingredients and novel compounds.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of herbicides, fungicides, and insecticides, leveraging the dichloro-substituted phenyl ring for enhanced biological activity.
• Pharmaceutical Synthesis: Used in the development of active pharmaceutical ingredients (APIs) and drug candidates, particularly in creating thiourea and heterocyclic derivatives with potential therapeutic properties.
• Chemical Research & Development: Serves as a fundamental reagent in organic synthesis for constructing complex molecules, studying reaction mechanisms, and developing new methodologies.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of specialized dyes and pigments, where the isothiocyanate group facilitates covalent bonding to substrates.
• Polymer Modification: Employed to introduce functional groups into polymer chains, enhancing material properties such as adhesion, compatibility, or chemical resistance.
• Ligand Synthesis for Catalysis: Used to prepare specialized ligands for metal complexes in catalytic applications, contributing to more efficient and selective chemical processes.

Basic Information

Product Name	3,4-Dichlorophenyl Isothiocyanate
CAS No.	6590-94-9
Molecular Formula	C7H3Cl2NS
Molecular Weight	204.08 g/mol
Synonyms	1,2-Dichloro-4-isothiocyanatobenzene; 3,4-Dichlorophenyl mustard oil; (3,4-Dichlorophenyl)isothiocyanate; 3,4-Dichlorobenzene isothiocyanate; Isothiocyanic acid, 3,4-dichlorophenyl ester; NSC 404083; 4-Isothiocyanato-1,2-dichlorobenzene
EINECS	229-546-5

Quality Control

Our 3,4-Dichlorophenyl Isothiocyanate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity, potency, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your internal quality standards.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	48 - 52 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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