Description

4,4'-Diiodobiphenyl is a high-purity organic compound featuring two iodine atoms symmetrically positioned on a biphenyl core. This specific molecular architecture makes it a valuable building block and intermediate in advanced chemical synthesis. It is essential for researchers and manufacturers in the pharmaceutical, liquid crystal, and organic electronics sectors, where precise molecular control is critical for developing new materials and active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly in constructing complex aromatic systems.
• Liquid Crystal Materials: Used in the development of advanced liquid crystal displays (LCDs) and optical materials due to its rigid, halogenated biphenyl structure which influences mesomorphic properties.
• Organic Light-Emitting Diodes (OLEDs): Acts as a building block for electron-transport materials and host materials in OLED device fabrication.
• Polymer Chemistry: Employed as a monomer or cross-linking agent in the production of specialty polymers with enhanced thermal stability and electronic characteristics.
• Organic Synthesis Reagent: Utilized in cross-coupling reactions (e.g., Suzuki, Ullmann) to introduce the biphenyl moiety into more complex molecular architectures.
• Research & Development: A critical compound for academic and industrial R&D in material science and medicinal chemistry for exploring new chemical entities.

Basic Information

Product Name	4,4'-Diiodobiphenyl
CAS No.	3001-15-8
Molecular Formula	C12H8I2
Molecular Weight	406.00 g/mol
Synonyms	4,4'-Diiodo-1,1'-biphenyl; Biphenyl, 4,4'-diiodo-; p,p'-Diiodobiphenyl; 4,4'-Bis(iodo)benzene; DIDP; [1,1'-Biphenyl]-4,4'-diyl diiodide; 4-Iodophenyl iodide
EINECS	221-101-5

Quality Control

Our 4,4'-Diiodobiphenyl is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our quality commitment ensures reliability for your critical R&D and production processes.

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). Keep away from heat and incompatible materials. The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	198°C - 202°C
Loss on Drying	≤0.5%
Heavy Metals	≤20 ppm

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