Description

4,4'-Diisopropylbiphenyl is a high-purity organic compound belonging to the class of alkylated biphenyls. This specialty chemical serves as a versatile intermediate and a key component in advanced material synthesis, valued for its thermal stability and specific molecular architecture. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring a robust and functionalized biphenyl core.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Agrochemical Synthesis: Serves as a key building block for herbicides, fungicides, and other crop protection agents.
• Liquid Crystal & OLED Materials: Acts as a precursor or core structure in the production of advanced electronic display materials.
• Polymer & Resin Modifier: Employed to enhance thermal and chemical properties of specialty polymers and epoxy resins.
• Organic Synthesis Reagent: Utilized as a ligand or intermediate in cross-coupling reactions and other catalytic processes.
• Heat Transfer Fluid Component: Incorporated into formulations requiring high thermal stability and low volatility.

Basic Information

Product Name	4,4'-Diisopropylbiphenyl
CAS No.	18970-30-4
Molecular Formula	C18H22
Molecular Weight	238.37 g/mol
Synonyms	p,p'-Diisopropylbiphenyl; 1,1'-Biphenyl, 4,4'-bis(1-methylethyl)-; 4,4'-Bis(isopropyl)biphenyl; Diisopropylbiphenyl; Biphenyl, 4,4'-diisopropyl-; DIPB; CAS 18970-30-4
EINECS	242-722-6

Quality Control

Our 4,4'-Diisopropylbiphenyl is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). 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	118 - 122 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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