Description

Cyclopropyl 4-Methylbenzenesulfonate is a specialized organic sulfonate ester, a key synthetic intermediate in advanced chemical synthesis. Its value lies in the reactive cyclopropyl group, which serves as a versatile building block for constructing complex molecular architectures with unique ring strain properties. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), especially those containing cyclopropane motifs for antiviral, anticancer, or central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where the cyclopropyl group enhances biological activity and stability.
• Organic Synthesis Reagent: Serves as a versatile electrophile or protecting group reagent in complex multi-step organic reactions, including cross-coupling and cycloaddition reactions.
• Material Science Research: Employed in the development of novel polymers, liquid crystals, or organic electronic materials that incorporate strained ring systems.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying enzyme mechanisms or biological pathways.

Basic Information

Product Name	Cyclopropyl 4-Methylbenzenesulfonate
CAS No.	7761-76-4
Molecular Formula	C10H12O3S
Molecular Weight	212.27 g/mol
Synonyms	Cyclopropyl p-toluenesulfonate; p-Toluenesulfonic acid cyclopropyl ester; 4-Methylbenzenesulfonic acid cyclopropyl ester; Cyclopropyl tosylate; Tosylcyclopropane; Cyclopropyl tosylate ester; Cyclopropyl 4-toluenesulfonate
EINECS	Contact for details

Quality Control

Our Cyclopropyl 4-Methylbenzenesulfonate is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research and commercial synthesis. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of cGMP and ISO standards for fine chemical intermediates.

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). Keep away from heat, sparks, and open flame. Due to its nature as an organic sulfonate ester, it should be stored separately from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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