Description

4'-Nitro-4-Biphenylsulfonic Acid is a specialized aromatic sulfonic acid derivative, serving as a key synthetic intermediate in advanced organic synthesis. Its value lies in the unique reactivity conferred by the combination of a sulfonic acid group and a nitro-substituted biphenyl core, enabling precise chemical transformations. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require high-purity building blocks for complex molecule development.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Synthesis: Serves as a precursor for developing herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Manufacturing: Acts as a key intermediate in the production of specialized azo dyes and high-performance pigments.
• Liquid Crystal & OLED Materials: Utilized in the research and development of electronic display components and organic light-emitting diodes.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymer chains, altering solubility and ionic properties.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D in organic and medicinal chemistry.

Basic Information

Product Name	4'-Nitro-4-Biphenylsulfonic Acid
CAS No.	91493-72-0
Molecular Formula	C12H9NO5S
Molecular Weight	279.27 g/mol
Synonyms	4-(4-Nitrophenyl)benzenesulfonic Acid; [1,1'-Biphenyl]-4-sulfonic acid, 4'-nitro-; p-Nitrobiphenyl-4'-sulfonic Acid; 4'-Nitro[1,1'-biphenyl]-4-sulfonic Acid; 4-Nitrophenyl-4-sulfophenyl Ether (related); 4'-Nitro-4-sulfobiphenyl
EINECS	Contact for details

Quality Control

Our 4'-Nitro-4-Biphenylsulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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