Chemical Identity and Structure

1-(2-Chloroethyl)-3-(trifluoromethyl)benzene (SKU: C1026658) is an aromatic compound featuring a benzene ring substituted at the meta position with a trifluoromethyl (–CF3) group and a 2-chloroethyl (–CH₂CH₂Cl) side chain. Its molecular formula is C₉H₈ClF₃ and its molecular weight is approximately 208.60 g/mol. The CAS registry number commonly associated with this compound is 705-29-3; researchers should verify this against the certificate of analysis supplied with each lot.

The trifluoromethyl group is strongly electron-withdrawing, reducing electron density on the aromatic ring and influencing the reactivity of the chloroethyl side chain. This electronic profile makes the compound particularly attractive as a building block in drug discovery programs targeting fluorinated pharmacophores, as well as in the preparation of specialty polymers and agrochemical intermediates.

Physical Properties and Storage

1-(2-Chloroethyl)-3-(trifluoromethyl)benzene is expected to be a colorless to pale-yellow liquid at room temperature, consistent with related chloroalkyl-arene compounds of similar molecular weight. Exact boiling point, density, refractive index, and flash point data should be taken from the product's Safety Data Sheet (SDS) and certificate of analysis (CoA), as these values can vary with purity and measurement conditions.

For routine storage, keep the compound in a tightly sealed container away from moisture, heat, and ignition sources. Storage under inert atmosphere (nitrogen or argon) at 2–8 °C or at room temperature in a cool, dry, well-ventilated area is generally advisable for chloroalkyl reagents of this class. Consult the SDS provided with your specific lot for authoritative storage and stability guidance.

Handling, Safety, and Regulatory Considerations

As a chloroalkyl-containing reagent, 1-(2-Chloroethyl)-3-(trifluoromethyl)benzene should be handled with appropriate personal protective equipment (PPE), including chemical-resistant gloves, safety goggles, and a laboratory coat. Work should be conducted in a well-ventilated fume hood to minimise inhalation exposure to vapours.

Chloroethyl compounds can act as alkylating agents and may be irritating or harmful upon skin contact, eye contact, or inhalation. Researchers must review the SDS before use. Disposal should comply with local regulations governing halogenated organic waste. This compound is intended for research use only and is not approved for use in humans, animals, or food products.

Research Applications

The combination of a reactive chloroethyl leaving group and a lipophilicity- and metabolic-stability-enhancing trifluoromethyl group makes 1-(2-Chloroethyl)-3-(trifluoromethyl)benzene a useful synthon in multiple research contexts:

• Medicinal chemistry: Introduction of a 3-(trifluoromethyl)phenethyl motif onto nucleophilic scaffolds (amines, thiols, alcohols) via N-, S-, or O-alkylation reactions to explore structure–activity relationships.
• Materials science: Incorporation of fluorinated aryl units into polymer backbones or small-molecule organic semiconductors to tune electronic and thermal properties.
• Agrochemical research: As a building block for fluorinated active ingredient candidates where the CF3 group improves biostability and membrane permeability.

Researchers should independently validate reaction conditions, yields, and selectivities for their specific substrate systems.

Ordering, Purity, and Quality Specifications

1-(2-Chloroethyl)-3-(trifluoromethyl)benzene is available from Aladdin Scientific under SKU C1026658. Purity grade and available pack sizes should be confirmed on the current product page or by contacting Aladdin Scientific customer service, as specifications may be updated between catalogue editions.

Each lot is accompanied by a certificate of analysis (CoA) detailing purity (typically determined by GC or HPLC), appearance, and relevant physicochemical data. Customers requiring custom quantities, higher purity grades, or specific analytical testing should submit an enquiry through the Aladdin Scientific website or contact their regional account manager.