Description

Furan-2-Sulphonic Acid CAS NO 82971-11-7 is a specialized heterocyclic sulfonic acid derivative, serving as a versatile and high-value building block in advanced organic synthesis. Its unique structure, combining a furan ring with a sulfonic acid group, makes it a critical intermediate for introducing specific functionalities into target molecules. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in the development of sulfonamide-based therapeutics and heterocyclic active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators that require a furan-sulfonate moiety for enhanced activity.
• Catalyst and Ligand Precursor: Serves as a precursor for metal-organic catalysts and specialized ligands used in cross-coupling and other catalytic reactions.
• Polymer and Material Science: Employed in the synthesis of functional polymers, ion-exchange resins, and specialty surfactants due to its acidic and hydrophilic properties.
• Fine Chemical Manufacturing: A crucial reagent for the custom synthesis of complex organic molecules for research and industrial applications.
• Dye and Pigment Intermediate: Used in the synthesis of specialized dyes and pigments where the sulfonic acid group improves solubility and binding properties.

Basic Information

Item	Details
Product Name	Furan-2-Sulphonic Acid
CAS No.	82971-11-7
Molecular Formula	C4H4O4S
Molecular Weight	148.14 g/mol
Synonyms	2-Furansulfonic Acid; 2-Furoic Sulfonic Acid; Furan-2-sulfonic Acid; α-Furansulfonic Acid; Thiophene-2-sulfonic Acid analogue; 2-Sulfofuran; Furan-2-ylsulfonic Acid
EINECS	Contact for details

Quality Control

Our Furan-2-Sulphonic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. We provide full traceability and Certificates of Analysis (COA) are available for every shipment upon request, guaranteeing consistency and reliability for your critical 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) and strong acid nature, the container must be kept tightly sealed in a dry environment and separated from bases and reactive materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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