Description

1-Cyanocyclopropyl 4-Methylbenzenesulfonate is a high-value, specialized chemical intermediate featuring a reactive sulfonate ester group and a nitrile-substituted cyclopropane ring. This unique molecular architecture makes it a critical building block for the synthesis of complex molecules, particularly in advanced pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists in the fine chemical and life sciences industries for constructing novel scaffolds and introducing functional complexity.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those containing cyclopropane or nitrile moieties for targeted therapies.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its reactive sites for structural diversification.
• Organic Synthesis Building Block: Serves as a versatile reagent for cross-coupling reactions, nucleophilic substitutions, and cycloadditions in academic and industrial laboratories.
• Material Science Research: Potential monomer or cross-linking agent in the development of specialty polymers with tailored properties.
• Ligand and Catalyst Development: Useful scaffold for creating novel chiral ligands or organocatalysts for asymmetric synthesis.

Basic Information

Product Name	1-Cyanocyclopropyl 4-Methylbenzenesulfonate
CAS No.	288569-60-8
Molecular Formula	C11H11NO3S
Molecular Weight	237.28 g/mol
Synonyms	1-Cyanocyclopropyl p-toluenesulfonate; p-Toluenesulfonic acid 1-cyanocyclopropyl ester; 4-Methylbenzenesulfonic acid 1-cyanocyclopropyl ester; 1-Cyanocyclopropyl tosylate; Tosyloxycyclopropanecarbonitrile; (1-Cyanocyclopropyl) 4-methylbenzenesulfonate
EINECS	Contact for details

Quality Control

Our 1-Cyanocyclopropyl 4-Methylbenzenesulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is subjected to comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to confirm identity and purity. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed in a dry environment to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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