Description

1,1'-Biphenyl, 4'-Bromo-3,5-Bis(1,1-Dimethylethyl)- is a high-purity, sterically hindered biphenyl derivative, serving as a critical advanced intermediate in organic synthesis. Its value lies in the strategic placement of bromine and bulky tert-butyl groups, which enable precise functionalization and controlled reactivity for building complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors who require reliable, high-quality building blocks for developing active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in drug discovery programs targeting complex organic molecules.
• Agrochemical Synthesis: Used in the research and development of advanced crop protection agents, such as herbicides and fungicides, where its structural motifs contribute to efficacy and stability.
• Ligand & Catalyst Precursor: Serves as a precursor for synthesizing specialized ligands in transition metal catalysis, enabling more efficient and selective chemical transformations.
• Material Science Research: Employed in the development of organic electronic materials, including charge-transport layers and light-emitting components, due to its conjugated biphenyl core.
• Fine Chemical Production: Acts as a versatile intermediate for the custom synthesis of specialty chemicals used in flavors, fragrances, and performance additives.

Basic Information

Product Name	1,1'-Biphenyl, 4'-Bromo-3,5-Bis(1,1-Dimethylethyl)-
CAS No.	343254-68-2
Molecular Formula	C20H25Br
Molecular Weight	345.32 g/mol
Synonyms	4'-Bromo-3,5-di-tert-butylbiphenyl; 3,5-Di-tert-butyl-4'-bromobiphenyl; 4'-Bromo-3,5-bis(tert-butyl)biphenyl; 4-Bromo-3',5'-di-tert-butyl-1,1'-biphenyl; 4'-Bromo-3,5-di-t-butylbiphenyl; 1,1'-Biphenyl, 4'-bromo-3,5-bis(1,1-dimethylethyl)-; 4'-Bromo-3,5-di-tert-butyl-1,1'-biphenyl
EINECS	Contact for details

Quality Control

Our production of 1,1'-Biphenyl, 4'-Bromo-3,5-Bis(1,1-Dimethylethyl)- adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency meet the exacting standards required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

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. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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