Description

2,4-Dinitrobenzenesulfonic Acid Dihydrate is a specialized aromatic sulfonic acid derivative, valued for its role as a versatile sulfonating agent and synthetic intermediate. Its significance lies in introducing the sulfonic acid functional group into target molecules, enabling the synthesis of dyes, surfactants, and other fine chemicals. This compound is primarily needed by research and development laboratories, pharmaceutical intermediates manufacturers, and producers of specialty chemicals and analytical reagents.

Application

• Sulfonation Reagent: Key intermediate for introducing sulfonic acid groups into organic compounds in fine chemical synthesis.
• Dye and Pigment Manufacturing: Used in the production of sulfonated azo dyes and other colorants requiring enhanced water solubility.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Surfactant and Detergent Synthesis: A precursor for creating anionic surfactants with specific chemical structures.
• Analytical Chemistry: Employed as a derivatization agent or a standard in chromatographic and spectroscopic methods.
• Polymer Modification: Used to sulfonate polymers, altering their properties for specific industrial applications.
• Cross-coupling Reactions: Acts as a substrate or reagent in metal-catalyzed coupling reactions for constructing complex molecules.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways.

Basic Information

Product Name	2,4-Dinitrobenzenesulfonic Acid Dihydrate
CAS No.	207234-00-2
Molecular Formula	C6H6N2O9S
Molecular Weight	282.19 g/mol
Synonyms	2,4-Dinitrobenzenesulfonic Acid Hydrate; Benzenesulfonic acid, 2,4-dinitro-, dihydrate; 2,4-Dinitrobenzene-1-sulfonic acid dihydrate; 2,4-DNBSA dihydrate; DNBSA dihydrate; 2,4-Dinitrophenylsulfonic acid dihydrate
EINECS	Contact for details

Quality Control

Our 2,4-Dinitrobenzenesulfonic Acid Dihydrate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. Certificates of Analysis (COA) detailing specific test results are available for all shipments to support your quality assurance and regulatory needs.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	10.0 - 13.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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