Description

2,4-Dinitrofluorobenzene Sulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical building block and reagent in advanced organic synthesis. Its value lies in the unique reactivity imparted by the combination of electron-withdrawing nitro groups, a fluorine atom, and the sulfonic acid functionality, enabling precise chemical modifications. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules, particularly those requiring sulfonamide or fluorinated aromatic moieties.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and pesticides where the dinitrofluorobenzene scaffold provides specific biological activity.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for producing high-performance, color-fast azo dyes and organic pigments.
• Chemical Derivatization Agent: Employed in analytical chemistry and proteomics for labeling amines and other nucleophilic functional groups due to the reactivity of the fluorine atom.
• Polymer and Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers with specific thermal or chemical resistance properties.
• Research and Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating novel chemical entities.

Basic Information

Product Name	2,4-Dinitrofluorobenzene Sulfonic Acid
CAS No.	143134-35-4
Molecular Formula	C6H3FN2O7S
Molecular Weight	266.16 g/mol
Synonyms	1-Fluoro-2,4-dinitrobenzenesulfonic Acid; 2,4-Dinitro-1-fluorobenzenesulfonic Acid; Dinitrofluorobenzenesulfonic Acid; Sanger's Reagent Sulfonic Acid Derivative; FDNB-Sulfonic Acid; Benzenesulfonic acid, 1-fluoro-2,4-dinitro-; 2,4-DNFB Sulfonic Acid
EINECS	Contact for details

Quality Control

Every batch of 2,4-Dinitrofluorobenzene Sulfonic Acid is manufactured under strict quality management systems and undergoes comprehensive analytical testing to ensure it meets the high standards required for synthetic applications. We provide full traceability and Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality protocols are designed to support cGMP (current Good Manufacturing Practice) compliance for pharmaceutical customers and ensure consistency for industrial-scale users.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed to prevent degradation from atmospheric moisture and exposure to light. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.