Description

Benzaldehyde-2,4-Disulfonic Acid is a key aromatic sulfonic acid derivative, primarily valued as a versatile chemical intermediate in the synthesis of more complex organic compounds. Its disulfonic acid functionality makes it a valuable building block for introducing water-solubilizing groups and for creating dyes, optical brighteners, and specialty chemicals. This product is essential for manufacturers and R&D laboratories in the fine chemical, pharmaceutical, and agrochemical sectors seeking to develop advanced materials and active ingredients.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of acid dyes, reactive dyes, and fluorescent whitening agents (optical brighteners).
• Pharmaceutical Synthesis: Serves as a building block for creating sulfonated drug molecules, potentially enhancing solubility and bioavailability.
• Agrochemical Manufacturing: Used in the production of certain herbicides and plant growth regulators where the sulfonic acid group is integral to activity.
• Chemical Research & Development: Employed as a model compound or starting material in organic synthesis for introducing disulfonate groups.
• Catalyst and Ligand Preparation: Can be utilized to synthesize sulfonated ligands for metal complexes used in homogeneous catalysis.
• Water Treatment Chemicals: Potential use in the synthesis of scale inhibitors or dispersants due to its strong ionic character.

Basic Information

Product Name	Benzaldehyde-2,4-Disulfonic Acid
CAS No.	88-39-1
Molecular Formula	C7H6O7S2
Molecular Weight	266.25 g/mol
Synonyms	2,4-Disulfobenzaldehyde; Benzaldehyde-2,4-disulfonic acid; 2,4-Disulfobenzaldehyde; 2,4-Bis(sulfo)benzaldehyde; 2-Formylbenzene-1,5-disulfonic acid; 4-Formylbenzene-1,3-disulfonic acid; Benzaldehyde-m-disulfonic acid
EINECS	201-825-7

Quality Control

Our Benzaldehyde-2,4-Disulfonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing, including assay by titration, identification by FT-IR, and control of key impurities, to ensure it meets precise specifications for industrial and research applications. Certificates of Analysis (COA) documenting purity, physical properties, and test results are available for every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent caking or decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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