Description

5-Chloro-2-Nitrobenzenesulfonic Acid is a versatile and high-value aromatic sulfonic acid derivative, serving as a critical building block in advanced organic synthesis. Its unique structure, featuring both electron-withdrawing chloro and nitro substituents, makes it an essential intermediate for creating complex molecules with specific functionalities. This compound is particularly valuable for manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require reliable, high-purity intermediates for research and production.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs and other therapeutic agents.
• Agrochemical Synthesis: Used in the manufacture of herbicides, pesticides, and fungicides, where its sulfonic acid group aids in solubility and bioavailability.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing azo dyes and other complex colorants, contributing to color fastness and molecular stability.
• Chemical Research & Development: A valuable reagent for organic chemists in academia and industry for constructing novel aromatic compounds and studying reaction mechanisms.
• Polymer Modification: Can be used to introduce sulfonic acid groups into polymer chains, modifying properties like hydrophilicity and ion-exchange capacity.
• Corrosion Inhibitor Formulation: Serves as a component in specialty chemical formulations designed to protect metal surfaces.

Basic Information

Product Name	5-Chloro-2-Nitrobenzenesulfonic Acid
CAS No.	54481-12-8
Molecular Formula	C6H4ClNO5S
Molecular Weight	237.62 g/mol
Synonyms	2-Nitro-5-chlorobenzenesulfonic Acid; 5-Chloro-2-nitrobenzenesulphonic Acid; Benzenesulfonic acid, 5-chloro-2-nitro-; 5-Chloro-2-nitrobenzene-1-sulfonic acid; 2-Nitro-5-chlorophenylsulfonic acid; NSC 403107; 5-Chloro-2-nitro-phenylsulfonic acid
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Nitrobenzenesulfonic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the stringent requirements of our global B2B clients. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment, guaranteeing traceability and compliance with your internal quality standards.

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). Keep away from strong bases, oxidizing agents, and sources of ignition. Due to its strong acid nature, store separately from incompatible materials.

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.