Description

3,4-Dichloroiodobenzene is a high-purity halogenated aromatic building block of significant importance in advanced organic synthesis. Its unique structure, featuring both chlorine and iodine substituents, makes it a versatile intermediate for constructing complex molecules through selective cross-coupling reactions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require reliable, high-quality precursors for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a halogenated benzene core.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and pesticides where the dihalogenated structure is integral to biological activity.
• Material Science Research: Serves as a building block for creating organic semiconductors, liquid crystals, and other advanced functional materials.
• Cross-Coupling Reactions: An excellent substrate for Suzuki, Stille, and Negishi couplings, where the iodine atom offers superior reactivity over chlorine for selective functionalization.
• Ligand and Catalyst Preparation: Utilized in the synthesis of specialized ligands and organometallic catalysts for asymmetric synthesis.
• Chemical Research & Development: A valuable reagent for exploring new synthetic methodologies and constructing molecular libraries for screening.

Basic Information

Item	Detail
Product Name	3,4-Dichloroiodobenzene
CAS No.	20555-91-3
Molecular Formula	C6H3Cl2I
Molecular Weight	272.90 g/mol
Synonyms	1,2-Dichloro-4-iodobenzene; 4-Iodo-1,2-dichlorobenzene; 3,4-Dichloro-1-iodobenzene; (3,4-Dichlorophenyl)iodide; NSC 404087; 3,4-Dichloroidobenzene; 3,4-Dichloroiodo-benzene
EINECS	Contact for details

Quality Control

Our 3,4-Dichloroiodobenzene 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 and purity against stringent specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging during storage.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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