2-Chlorophenylethane

Updated: 2026-09-19

Overview

2-Chlorophenylethane, also known as 2-chloroethylbenzene, is an organic compound with the molecular formula C8H9Cl. It is a colorless to pale yellow liquid with a characteristic aromatic odor. The compound is primarily used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and other fine chemicals. Its structure consists of a benzene ring substituted with an ethyl group and a chlorine atom at the ortho position. This arrangement imparts specific reactivity, making it valuable in various chemical transformations. Industrial production typically involves the chlorination of ethylbenzene or related processes.

Physical and Chemical Properties

2-Chlorophenylethane is a volatile liquid with a density of approximately 1.07 g/cm³. It has a melting point of around -45°C and a boiling point between 200-202°C. The compound is soluble in common organic solvents like ethanol, ether, and acetone but exhibits negligible solubility in water. Key chemical properties include its reactivity with strong oxidizers, which can lead to hazardous reactions. It is also flammable, requiring careful handling to avoid ignition. The chlorine atom in the ortho position makes it a useful intermediate for nucleophilic substitution reactions, enabling further functionalization in synthetic chemistry.

Main Applications

2-Chlorophenylethane serves as a versatile intermediate in the pharmaceutical and agrochemical industries. It is used in the synthesis of active pharmaceutical ingredients (APIs) and crop protection agents. For example, it may be employed in the production of antihistamines or herbicides. In organic synthesis, the compound acts as a building block for more complex molecules. Its reactivity allows for transformations such as coupling reactions or further halogenation. Specialty chemical manufacturers also utilize it to produce dyes, fragrances, and other fine chemicals, leveraging its aromatic and electrophilic properties.

Safety and Storage

2-Chlorophenylethane poses several safety hazards, including flammability and potential health effects from inhalation or skin contact. Proper personal protective equipment (PPE), such as gloves, goggles, and respirators, should be used when handling the chemical. Work should be conducted in a fume hood to minimize exposure. Storage requires a cool, dry, well-ventilated area away from heat sources and open flames. Containers must be tightly sealed to prevent evaporation and contamination. Incompatible materials include strong oxidizers, which can cause violent reactions. Spills should be contained and cleaned up immediately using appropriate absorbents and disposal methods.

B2B Procurement Guide

When procuring 2-Chlorophenylethane, buyers should prioritize suppliers with verified certifications (e.g., ISO, GMP) to ensure quality and consistency. Key specifications to confirm include CAS number (622-24-2), purity (typically ≥98%), and the absence of impurities that could affect downstream applications. Pricing varies based on quantity, purity, and supplier location, with reference ranges commonly between $50-$200/kg. Bulk purchases may offer cost savings. Procurement teams should also evaluate logistics, such as shipping conditions (e.g., temperature control) and packaging (e.g., sealed drums), to maintain product integrity during transit.