Understanding 2-(Trifluoromethyl)benzenethiol (CAS 13333-97-6)

2-(Trifluoromethyl)benzenethiol, identified by CAS No. 13333-97-6, is an important organosulfur compound widely used in chemical synthesis and industrial research. Known for its unique trifluoromethyl substitution and thiol functional group, this compound serves as a valuable intermediate in pharmaceutical, agrochemical, and specialty chemical development.

This article explores its chemical properties, structure, applications, handling guidelines, and research significance.


Chemical Identification

  • CAS Number: 13333-97-6

  • Chemical Name: 2-(Trifluoromethyl)benzenethiol

  • Molecular Category: Aromatic thiol

  • Functional Groups: Thiol (–SH), trifluoromethyl (–CF₃)

The presence of the electron-withdrawing trifluoromethyl group significantly influences the compound’s reactivity and stability.


Molecular Structure and Key Properties

2-(Trifluoromethyl)benzenethiol consists of a benzene ring substituted with a thiol group and a trifluoromethyl group in the ortho position. This structure offers:

  • Enhanced lipophilicity

  • Distinct electronic properties

  • High reactivity toward metal ions and electrophiles

General Properties:

  • Strong sulfur-based nucleophilicity

  • Compatibility with various organic solvents

  • Useful reactivity for thiol-based coupling reactions


Applications in Research and Industry

Pharmaceutical Research

This compound is frequently used as a synthetic intermediate in medicinal chemistry. Thiol-containing aromatic compounds are explored in:

  • Enzyme inhibition studies

  • Drug candidate modification

  • Structure–activity relationship (SAR) analysis

Agrochemical Development

The trifluoromethyl group is valued for improving:

  • Biological activity

  • Metabolic stability

  • Environmental persistence of active compounds

As a result, CAS 13333-97-6 plays a role in agrochemical formulation research.

Specialty and Fine Chemicals

  • Used in the synthesis of sulfur-containing ligands

  • Applied in material science and functional chemical design

  • Acts as a precursor for advanced fluorinated compounds


Handling and Storage Guidelines

Due to the reactive nature of thiols:

  • Store in a cool, dry, and well-ventilated area

  • Keep containers tightly sealed

  • Avoid prolonged exposure to air and light

  • Use appropriate PPE, including gloves and eye protection

Proper handling ensures stability, safety, and consistent research performance.


Quality and Compliance

High-quality 2-(Trifluoromethyl)benzenethiol is typically supplied with:

  • Certificate of Analysis (COA)

  • Verified purity and batch traceability

  • Compliance with research and industrial standards

Sourcing from reliable suppliers is critical for accurate and reproducible results.


Conclusion

2-(Trifluoromethyl)benzenethiol (CAS 13333-97-6) is a versatile and valuable compound in modern chemical research. Its unique combination of a thiol group and trifluoromethyl substitution makes it an essential building block in pharmaceutical, agrochemical, and specialty chemical synthesis.

As demand for fluorinated and sulfur-based compounds grows, this chemical continues to support innovation across multiple research fields.