Description

4-Chloro-3,5-Dinitrobenzenesulfonic Acid is a key sulfonated aromatic intermediate characterized by its reactive chloro and nitro substituents. This compound matters for its role as a versatile building block in the synthesis of more complex molecules, particularly dyes, pigments, and agrochemicals. Industries such as specialty chemicals, pharmaceutical research, and material science require this high-purity intermediate for developing advanced products.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of sulfonated azo dyes and high-performance pigments.
• Agrochemical Synthesis: Used in the manufacturing of certain herbicides and plant growth regulators.
• Pharmaceutical Research: Serves as a building block for creating sulfonamide-based compounds and other active pharmaceutical ingredients (APIs).
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid groups into complex aromatic systems.
• Polymer Modification: Can be used to create functional monomers for specialty polymers and ion-exchange resins.
• Cross-coupling Reactions: The chloro and nitro groups make it a suitable substrate for various palladium-catalyzed reactions.

Basic Information

Product Name	4-Chloro-3,5-Dinitrobenzenesulfonic Acid
CAS No.	88-91-5
Molecular Formula	C6H3ClN2O8S
Molecular Weight	298.61 g/mol
Synonyms	3,5-Dinitro-4-chlorobenzenesulfonic Acid; 4-Chloro-3,5-dinitrobenzenesulfonate; Benzenesulfonic acid, 4-chloro-3,5-dinitro-; 1-Chloro-2,6-dinitro-4-sulfobenzene; DNCSA; 88-91-5; 4-Chloro-3,5-dinitrobenzene-1-sulfonic acid
EINECS	201-868-1

Quality Control

Our 4-Chloro-3,5-Dinitrobenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and research use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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