Description

Sodium 2-Chloro-5-Formylbenzenesulphonate is a high-purity, versatile aromatic sulfonate salt used as a critical intermediate in advanced chemical synthesis. Its value lies in the unique combination of a reactive formyl group and a stable sulfonate moiety, enabling precise functionalization for specialized applications. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty dye industries seeking to develop novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: A key building block for synthesizing active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated aromatic core.
• Agrochemical Synthesis: Used in the production of modern herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for water-soluble reactive dyes and high-value pigments.
• Liquid Crystal & OLED Materials: An intermediate in the synthesis of specialty chemicals for electronic display technologies.
• Polymer Modification: Employed to introduce sulfonate groups into polymers to enhance hydrophilicity and ionic character.
• Research & Development: A valuable reagent in organic chemistry R&D for creating novel sulfonated compounds.

Basic Information

Product Name	Sodium 2-Chloro-5-Formylbenzenesulphonate
CAS No.	40566-58-3
Molecular Formula	C7H4ClNaO4S
Molecular Weight	242.61 g/mol
Synonyms	5-Formyl-2-chlorobenzenesulfonic Acid Sodium Salt; 2-Chloro-5-formylbenzenesulfonic Acid Sodium Salt; Benzenesulfonic acid, 2-chloro-5-formyl-, sodium salt; Sodium 5-formyl-2-chlorobenzenesulfonate; 2-Chloro-5-formylbenzene-1-sulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 2-Chloro-5-Formylbenzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive synthesis processes. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with each 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); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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