Description

4'-Chloro-4-Biphenylsulfonic Acid is a specialized biphenyl derivative sulfonic acid, serving as a critical intermediate in advanced organic synthesis. Its value lies in its unique molecular structure, which combines a sulfonic acid group with a chlorinated biphenyl core, making it a versatile building block for creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical sectors, where it is used to develop active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring a sulfonated biphenyl scaffold.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Serves as a precursor or dopant in the manufacture of electronic display materials and organic light-emitting diodes (OLEDs).
• Dye & Pigment Manufacturing: Intermediate for producing sulfonated azo dyes and high-performance pigments with enhanced solubility and color fastness.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity, ion-exchange capacity, or catalytic activity.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways in medicinal and materials chemistry.

Basic Information

Product Name	4'-Chloro-4-Biphenylsulfonic Acid
CAS No.	179051-19-5
Molecular Formula	C12H9ClO3S
Molecular Weight	268.72 g/mol
Synonyms	4'-Chloro-1,1'-biphenyl-4-sulfonic Acid; 4-(4-Chlorophenyl)benzenesulfonic Acid; p-Chlorobiphenyl-4'-sulfonic Acid; [1,1'-Biphenyl]-4-sulfonic acid, 4'-chloro-; 4-Chloro-4'-biphenylsulfonic Acid
EINECS	Contact for details

Quality Control

Every batch of 4'-Chloro-4-Biphenylsulfonic Acid is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards, and our quality control includes rigorous analytical testing for identity, purity, and impurity profiles. A comprehensive 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 in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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