Description

4-Biphenylsulfonic Acid is a versatile organic sulfonic acid derivative, serving as a key intermediate in the synthesis of more complex chemical structures. Its value lies in its strong acidity and solubility in organic media, making it a valuable reagent and building block for specialized industrial processes. This compound is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for applications ranging from catalysis to the production of dyes and liquid crystals.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and other drug substances.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Manufacturing: Acts as a precursor or sulfonating agent in the creation of colorants and optical brighteners.
• Liquid Crystal Production: Serves as an intermediate in the synthesis of compounds used in liquid crystal displays (LCDs).
• Catalyst and Reagent: Employed as an acid catalyst in organic synthesis reactions or as a sulfonation reagent.
• Polymer Modification: Used to introduce sulfonic acid groups into polymers, altering their properties for specific industrial uses.
• Research & Development: A valuable compound for chemical research in academic and industrial laboratories.

Basic Information

Product Name	4-Biphenylsulfonic Acid
CAS No.	2113-68-0
Molecular Formula	C12H10O3S
Molecular Weight	234.27 g/mol
Synonyms	[1,1'-Biphenyl]-4-sulfonic Acid; 4-Phenylbenzenesulfonic Acid; p-Biphenylsulfonic Acid; Biphenyl-4-sulfonic Acid; 4-Biphenylylsulfonic Acid; p-Phenylbenzenesulfonic Acid; (1,1'-Biphenyl)-4-sulfonic Acid
EINECS	218-302-9

Quality Control

Our 4-Biphenylsulfonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the required specifications for identity, purity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our quality commitment supports compliance with relevant standards for industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 15-25°C. Due to its strong acid/organic solvent nature, ensure containers are kept tightly sealed to prevent moisture absorption and contamination.

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%
Heavy Metals	≤ 20 ppm

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