Description

2,4-Dinitrobenzenesulfonic Acid Hydrate is a specialized aromatic sulfonic acid derivative, recognized for its role as a versatile sulfonating agent and synthetic intermediate. Its value lies in introducing both sulfonic acid and nitro functional groups into target molecules, enabling the synthesis of dyes, pigments, and other complex organic compounds. This product is essential for research laboratories and industrial-scale manufacturers in the fine chemical, pharmaceutical, and agrochemical sectors.

Application

• Chemical Synthesis Intermediate: A key building block for synthesizing sulfonated dyes, pigments, and fluorescent brightening agents.
• Pharmaceutical Research: Used in the development of active pharmaceutical ingredients (APIs) and diagnostic agents requiring sulfonic acid functionality.
• Agrochemical Production: Serves as a precursor in the manufacture of certain herbicides and plant growth regulators.
• Polymer Modification: Employed to introduce sulfonate groups into polymers to alter solubility, dyeability, or ionic characteristics.
• Analytical Chemistry: Can be used as a derivatization agent or a standard in chromatographic analysis.
• Catalysis & Ligand Synthesis: Acts as a precursor for creating specialized ligands or catalysts in organic transformations.

Basic Information

Product Name	2,4-Dinitrobenzenesulfonic Acid Hydrate
CAS No.	19890-20-1
Molecular Formula	C6H4N2O8S · xH2O
Molecular Weight	248.17 (Anhydrous basis)
Synonyms	2,4-Dinitrobenzenesulfonic Acid; 2,4-Dinitrobenzenesulphonic Acid; 2,4-Dinitrobenzene-1-sulfonic Acid; 1-Sulfo-2,4-dinitrobenzene; Dinitrobenzenesulfonic Acid; DNBSA; Benzenesulfonic acid, 2,4-dinitro-; NSC 403119
EINECS	243-379-9

Quality Control

Our 2,4-Dinitrobenzenesulfonic Acid Hydrate is manufactured under strict quality management protocols. 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 detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, water content, and impurity profile.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm

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