Description

Sodium Benzaldehyde-o-Sulfonate is a key organic intermediate and sulfonating agent, essential for introducing the sulfonate functional group into complex molecules. Its high reactivity and water-soluble sodium salt form make it a versatile building block for synthesizing specialty chemicals. This compound is particularly valuable for manufacturers in the pharmaceutical, dye, and agrochemical sectors seeking to enhance product solubility or create specific molecular architectures.

Application

• Pharmaceutical Intermediate: Used in the synthesis of sulfonamide drugs and other active pharmaceutical ingredients (APIs) requiring enhanced water solubility.
• Dye and Pigment Manufacturing: Serves as a key intermediate for producing sulfonated azo dyes and other colorants, improving their affinity for textile fibers.
• Agrochemical Synthesis: Employed in the production of certain herbicides and fungicides, where the sulfonate group aids in formulation stability and bioavailability.
• Chemical Research & Development: Acts as a versatile reagent for organic synthesis, particularly in reactions involving electrophilic aromatic substitution or as a protecting group precursor.
• Surfactant and Detergent Industry: Can be utilized as a starting material or intermediate for synthesizing specialized anionic surfactants.
• Photographic Chemicals: Finds application in the synthesis of certain compounds used in photographic developers and other imaging materials.

Basic Information

Product Name	Sodium Benzaldehyde-o-Sulfonate
CAS No.	91-25-8
Molecular Formula	C7H5NaO4S
Molecular Weight	208.17 g/mol
Synonyms	2-Formylbenzenesulfonic Acid Sodium Salt; Benzaldehyde-2-sulfonic Acid Sodium Salt; o-Sulfobenzaldehyde Sodium Salt; Sodium 2-Formylbenzenesulfonate; Sodium o-Sulfobenzaldehyde; Benzenesulfonic acid, 2-formyl-, sodium salt (1:1); 2-Carboxybenzenesulfonic Acid Sodium Salt (related form)
EINECS	202-052-8

Quality Control

Our Sodium Benzaldehyde-o-Sulfonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) that document key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the stringent requirements for use as a high-purity intermediate in regulated industries.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

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.