Description

4-Chloro-3-Formylbenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a key multifunctional intermediate in advanced organic synthesis. Its unique structure, featuring both a formyl and a sulfonic acid group on a chlorinated benzene ring, makes it invaluable for introducing specific functionality into target molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for the development of active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing novel drug candidates, particularly in the development of sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where the sulfonic acid group enhances solubility and bioavailability.
• Dye and Pigment Manufacturing: Serves as a precursor for creating sulfonated azo dyes and other colorants with improved water solubility and fastness properties.
• Polymer Modification: Employed to introduce ionic or cross-linking sites into polymer chains, modifying properties like hydrophilicity and thermal stability.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organic reactions and creating specialized chemical libraries.
• Ligand and Catalyst Preparation: Used to synthesize complexing agents and catalysts for various industrial chemical processes.

Basic Information

Product Name	4-Chloro-3-Formylbenzenesulfonic Acid
CAS No.	60767-69-3
Molecular Formula	C7H5ClO4S
Molecular Weight	220.63 g/mol
Synonyms	3-Formyl-4-chlorobenzenesulfonic Acid; 4-Chloro-3-formylbenzenesulphonic Acid; 4-Chlorobenzaldehyde-3-sulfonic Acid; 2-Chloro-5-sulfobenzaldehyde; 5-Chloro-2-formylbenzenesulfonic Acid; 5-Chloro-2-sulfobenzaldehyde; 2-Formyl-4-chlorobenzenesulfonic Acid; Benzenesulfonic acid, 4-chloro-3-formyl-
EINECS	Contact for details

Quality Control

Our 4-Chloro-3-Formylbenzenesulfonic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and quality assurance for your R&D and production needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. For long-term storage, consider using desiccants or an inert atmosphere to minimize the risk of oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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