Description

4-Formyl-1,3-Benzenedisulfonic Acid, Disodium Salt Hydrate, 97% is a high-purity, functionalized aromatic sulfonate salt, serving as a versatile and water-soluble synthetic intermediate. Its value lies in the dual sulfonic acid groups and formyl functionality, which provide multiple reactive sites for chemical modification and coupling reactions. This compound is essential for researchers and manufacturers in the fine chemical, pharmaceutical, and specialty dye industries who require a reliable building block for synthesizing complex molecules, surfactants, and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents, leveraging its reactive aldehyde and sulfonate groups.
• Dye and Pigment Synthesis: Used in the production of water-soluble, high-performance dyes and optical brighteners due to its sulfonic acid salt groups that enhance solubility and affinity.
• Ligand and Chelating Agent Precursor: Serves as a starting material for creating specialized ligands used in catalysis, metal ion sequestration, and water treatment processes.
• Polymer Modification: Incorporated into polymer chains to introduce sulfonate functionality, improving hydrophilicity, antistatic properties, or ion-exchange capacity.
• Crosslinking Agent: The formyl group can participate in condensation reactions, making it useful in creating crosslinked networks for resins, hydrogels, or coatings.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecular architectures in academic and industrial R&D settings.

Basic Information

Product Name	4-Formyl-1,3-Benzenedisulfonic Acid, Disodium Salt Hydrate, 97%
CAS No.	207291-88-1
Molecular Formula	C7H4Na2O8S2 · xH2O
Molecular Weight	328.20 g/mol (Anhydrous basis)
Synonyms	5-Formyl-1,3-Benzenedisulfonic Acid Disodium Salt; 4-Formylbenzene-1,3-disulfonic Acid Disodium Salt; 5-Formylbenzene-1,3-disulfonic Acid Disodium Salt; 4-Carboxybenzaldehyde-1,3-disulfonic Acid Disodium Salt (tautomer); Disodium 4-formylbenzene-1,3-disulfonate; 1,3-Benzenedisulfonic acid, 4-formyl-, disodium salt; Benzaldehyde-4,6-disulfonic Acid Disodium Salt
EINECS	Contact for details

Quality Control

Our 4-Formyl-1,3-Benzenedisulfonic Acid, Disodium Salt Hydrate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the specified 97% minimum purity and consistent performance. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory compliance needs.

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 tightly sealed after each use to prevent absorption of atmospheric moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere to mitigate potential oxidation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	Contact for details
Solubility	Freely soluble in water

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