Description

1,1'-Biphenyl, 4-Chloro-4'-Ethynyl- CAS NO 57399-11-8 is a specialized biphenyl derivative featuring chloro and ethynyl functional groups at the para positions. This unique molecular structure makes it a valuable high-purity intermediate for advanced organic synthesis and materials science research. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and organic electronics sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in drug discovery programs.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and plant growth regulators.
• Organic Electronic Materials: Serves as a precursor for conjugated systems and small molecule semiconductors used in OLEDs, OFETs, and photovoltaics.
• Ligand & Catalyst Development: Employed in the creation of specialized ligands for transition metal catalysis and organometallic chemistry.
• Polymer & Resin Modifier: Acts as a functional monomer or cross-linking agent to introduce rigidity and specific properties into polymer chains.
• Academic & Industrial R&D: A crucial reagent for methodological studies in synthetic organic chemistry and materials science.

Basic Information

Product Name	1,1'-Biphenyl, 4-Chloro-4'-Ethynyl-
CAS No.	57399-11-8
Molecular Formula	C14H9Cl
Molecular Weight	212.67 g/mol
Synonyms	4-Chloro-4'-ethynylbiphenyl; 4'-Ethynyl-4-chlorobiphenyl; 4-Chloro-4'-ethynyl-1,1'-biphenyl; p-Chloro-p'-ethynylbiphenyl; Biphenyl, 4-chloro-4'-ethynyl-; 4-(4-Chlorophenyl)phenylacetylene
EINECS	Contact for details

Quality Control

We maintain a rigorous quality management system to ensure batch-to-batch consistency and high purity. Our products undergo comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity against stringent internal specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.