Description

2-(2-Cyanophenyl)Ethanesulfonic Acid is a specialized sulfonic acid derivative featuring a cyano functional group, serving as a high-value intermediate in advanced organic synthesis. Its unique structure makes it a critical building block for constructing complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and functional materials. This compound is essential for research and production chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce both sulfonic acid and nitrile functionalities into target molecules.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those requiring sulfonate or benzonitrile moieties for enhanced bioavailability or target binding.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators where the cyano and sulfonic acid groups contribute to biological activity.
• Ligand and Catalyst Development: Serves as a building block for creating specialized ligands used in transition metal catalysis and organocatalysis.
• Functional Material Precursor: Employed in the research and production of advanced polymers, dyes, and electronic materials requiring specific ionic or polar characteristics.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D exploring new synthetic methodologies and compound libraries.

Basic Information

Product Name	2-(2-Cyanophenyl)Ethanesulfonic Acid
CAS No.	1223748-51-3
Molecular Formula	C9H9NO3S
Molecular Weight	211.24 g/mol
Synonyms	2-(2-Cyanophenyl)ethanesulfonic acid; 2-(2-Cyanophenyl)ethane-1-sulfonic acid; 2-Cyanophenylethanesulfonic Acid; (2-Cyanophenyl)ethanesulfonic Acid; 2-(2-Cyanophenyl)ethylsulfonic Acid; o-Cyanophenylethanesulfonic Acid; 2-Phenylethanesulfonic acid, 2-cyano-; CAS 1223748-51-3
EINECS	Contact for details

Quality Control

Every batch of 2-(2-Cyanophenyl)Ethanesulfonic Acid is manufactured under a strict quality management system and undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and detailed Certificates of Analysis (COA) with each shipment, which include data from advanced techniques such as HPLC, NMR, and mass spectrometry. Our quality commitment aligns with cGMP principles where applicable, ensuring the material meets the stringent requirements for use in regulated synthesis.

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). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from absorbed moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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