Description

2-Formylbenzenesulfonic Acid Sodium Salt is a versatile aromatic sulfonate derivative that serves as a key synthetic intermediate in fine chemical manufacturing. Its bifunctional structure, featuring both a formyl and a sulfonate group, makes it valuable for constructing complex molecules through condensation and substitution reactions. This compound is particularly relevant for producers in the pharmaceutical, agrochemical, and specialty dye industries seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfonamide or benzaldehyde motifs.
• Agrochemical Synthesis: Serves as a precursor for manufacturing herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a key intermediate in the production of sulfonated azo dyes and other colorants.
• Chemical Research & Development: Employed as a building block in organic synthesis for novel compound libraries and material science.
• Cross-linking Agent: Potential use in polymer chemistry for creating water-soluble or ionic functional polymers.
• Catalyst Ligand Precursor: Can be modified to form ligands for metal catalysts used in various industrial processes.

Basic Information

Product Name	2-Formylbenzenesulfonic Acid Sodium Salt
CAS No.	1008-72-6
Molecular Formula	C7H5NaO4S
Molecular Weight	208.16 g/mol
Synonyms	o-Formylbenzenesulfonic Acid Sodium Salt; Sodium 2-Formylbenzenesulfonate; 2-Carboxybenzenesulfonic Acid Sodium Salt (tautomer); Benzaldehyde-2-sulfonic Acid Sodium Salt; o-Sulfobenzaldehyde Sodium Salt; Sodium o-Sulfobenzaldehyde; 2-Sulfobenzaldehyde Sodium Salt; Sodium Benzaldehyde-2-sulfonate
EINECS	213-758-7

Quality Control

Our 2-Formylbenzenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications, including identity, purity, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing results from tests such as HPLC, NMR, and titration is provided with every shipment to guarantee traceability and compliance with your project requirements.

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) and must be kept in a dry environment to prevent caking or decomposition. Keep away from strong oxidizing agents.

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%
pH (5% solution)	6.0 - 8.0

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