Description

4-Formyl-1,3-Benzenedisulfonic Acid is a key aromatic sulfonic acid derivative featuring both formyl and sulfonic acid functional groups. This unique bifunctional structure makes it a versatile and valuable building block and intermediate for advanced chemical synthesis. It is primarily utilized in the production of specialty dyes, optical brighteners, and pharmaceutical intermediates where precise molecular architecture is required. Industries such as fine chemicals, agrochemicals, and material science rely on its consistent quality for developing high-performance products.

Application

• Chemical Intermediate: A crucial precursor in the synthesis of complex organic molecules, particularly for introducing sulfonic acid groups.
• Dye and Pigment Manufacturing: Serves as a key building block for producing water-soluble and high-affinity dyes, including reactive and acid dyes.
• Optical Brightener Production: Used in the manufacture of stilbene-based optical brightening agents for paper, textiles, and detergents.
• Pharmaceutical Synthesis: Acts as an intermediate in creating active pharmaceutical ingredients (APIs) with enhanced solubility properties.
• Agrochemical Development: Employed in the research and production of advanced herbicides and plant growth regulators.
• Crosslinking Agent: Can be used in polymer chemistry to create crosslinked networks with specific ionic characteristics.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and material properties.

Basic Information

Product Name	4-Formyl-1,3-Benzenedisulfonic Acid
CAS No.	313223-11-9
Molecular Formula	C7H6O7S2
Molecular Weight	266.25 g/mol
Synonyms	5-Formyl-1,3-Benzenedisulfonic Acid; 4-Formylbenzene-1,3-disulfonic Acid; 5-Formylbenzene-1,3-disulfonic Acid; 1,3-Benzenedisulfonic acid, 4-formyl-; Isophthalaldehyde-4-sulfonic acid (derivative); 4-Carboxybenzaldehyde-1,3-disulfonate (related form); Formylisophthalic acid disulfonate
EINECS	Contact for details

Quality Control

Our 4-Formyl-1,3-Benzenedisulfonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures reliability for your critical synthesis and production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Sulfated Ash	≤ 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.