Description

1-Cyanonaphthalene-2-Sulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a high-value intermediate in advanced organic synthesis. Its unique structure, combining a cyano group with a sulfonic acid moiety on the naphthalene ring, makes it a critical building block for creating complex molecules with tailored properties. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty dye industries, where it is used to introduce specific functional groups and modify solubility characteristics.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring naphthalene-based scaffolds with enhanced water solubility.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators, where the sulfonic acid group can improve formulation characteristics.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing high-performance, water-soluble azo dyes and organic pigments with improved fastness properties.
• Ligand and Catalyst Development: Employed in research to create novel ligands for metal catalysis and organocatalysts due to its electron-withdrawing and coordinating groups.
• Polymer Modification: Acts as a functional monomer or additive to introduce sulfonate groups into polymers, enhancing their hydrophilicity, ion-exchange capacity, or dyeability.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and constructing complex molecular architectures.

Basic Information

Product Name	1-Cyanonaphthalene-2-Sulfonic Acid
CAS No.	411237-01-9
Molecular Formula	C11H7NO3S
Molecular Weight	233.24 g/mol
Synonyms	2-Naphthalenesulfonic acid, 1-cyano-; 1-Cyano-2-naphthalenesulfonic acid; 1-Cyano-2-naphthalenesulphonic acid; 1-Cyano-2-naphthalenesulfonate; 1-Cyano-2-naphthalenesulphonate; 1-Cyano-2-naphthalenesulfonic acid (CAS 411237-01-9)
EINECS	Contact for details

Quality Control

Our 1-Cyanonaphthalene-2-Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request. We are committed to providing consistent, high-purity material to support your critical processes.

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). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
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.