Description

1,1'-Biphenyl, 4,4'-Diethynyl-2,2'-Dimethyl- is a high-purity, functionalized biphenyl derivative featuring terminal ethynyl groups. This compound matters as a versatile and valuable organic building block for advanced materials synthesis, enabling the creation of rigid, conjugated molecular architectures. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for constructing complex drug candidates, particularly in oncology and antiviral research.
• Agrochemical Synthesis: Used in the development of new-generation herbicides and fungicides with enhanced activity.
• Material Science Research: Acts as a fundamental monomer for synthesizing conjugated polymers, dendrimers, and metal-organic frameworks (MOFs).
• Organic Electronics: Employed in the fabrication of organic light-emitting diodes (OLEDs) and semiconductors due to its rigid, pi-conjugated backbone.
• Cross-Coupling Reactions: An essential substrate in Sonogashira, Heck, and other palladium-catalyzed coupling reactions to create complex organic structures.
• Ligand and Catalyst Development: Used to prepare specialized ligands for catalysis and molecular recognition applications.

Basic Information

Product Name	1,1'-Biphenyl, 4,4'-Diethynyl-2,2'-Dimethyl-
CAS No.	1788872-95-6
Molecular Formula	C18H14
Molecular Weight	230.31 g/mol
Synonyms	4,4'-Diethynyl-2,2'-dimethylbiphenyl; 2,2'-Dimethyl-4,4'-diethynyl-1,1'-biphenyl; 4,4'-Bis(ethynyl)-2,2'-dimethylbiphenyl; Biphenyl-4,4'-diylbis(ethyne-2,1-diyl)bis(3-methylbenzene); DEDMBP; 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diyldiethyneyl
EINECS	Contact for details

Quality Control

Our production of 1,1'-Biphenyl, 4,4'-Diethynyl-2,2'-Dimethyl- adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your critical syntheses. All materials are accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support cGMP and ISO 9001 compliant manufacturing practices upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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