Description

2-Formylbenzenesulfonic Acid Sodium Salt Hydrate, Tech. 90 is a versatile aromatic sulfonate derivative, serving as a key synthetic intermediate and functional additive. Its value lies in the combination of a reactive aldehyde group and a water-solubilizing sulfonate salt, enabling its use in specialized organic synthesis and industrial formulations. This technical grade product is essential for manufacturers in the fine chemical, pharmaceutical, and specialty polymer industries seeking a reliable building block for further chemical transformations.

Application

• Chemical Synthesis Intermediate: A crucial precursor for the production of dyes, pigments, and fluorescent whitening agents.
• Pharmaceutical Manufacturing: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Polymer & Resin Modification: Acts as a functional monomer or cross-linking agent to introduce sulfonate groups into polymers for enhanced solubility or ionic character.
• Electroplating & Surface Treatment: Serves as an additive in plating baths for improved metal deposition and surface finish quality.
• Catalyst & Ligand Preparation: Utilized in the development of specialized catalysts and chelating agents for industrial processes.
• Research & Development: Employed in academic and industrial R&D for exploring new organic reactions and material properties.

Basic Information

Item	Detail
Product Name	2-Formylbenzenesulfonic Acid Sodium Salt Hydrate, Tech. 90
CAS No.	305808-14-4
Molecular Formula	C7H5NaO5S · xH2O
Molecular Weight	Anhydrous: 224.16 g/mol
Synonyms	Sodium 2-Formylbenzenesulfonate Hydrate; 2-Carboxybenzenesulfonic Acid Sodium Salt (related form); o-Formylbenzenesulfonic Acid Sodium Salt; Benzaldehyde-2-sulfonic Acid Sodium Salt; 2-Sulfobenzaldehyde Sodium Salt; Sodium 2-Sulfobenzoate (reduced form); Salicylaldehyde-2-sulfonate Sodium Salt (common name); o-Sulfobenzaldehyde Sodium Salt
EINECS	Contact for details

Quality Control

Our 2-Formylbenzenesulfonic Acid Sodium Salt Hydrate, Tech. 90 is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the defined technical specifications for purity and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request 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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Off-white to pale yellow powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90.0% (as sodium salt hydrate)
Water Content (KF)	To be specified on COA
Heavy Metals (as Pb)	< 20 ppm
Residue on Ignition	To be specified on COA
pH (10% solution)	6.0 - 8.0

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