4-Fluorothioanisole
4-Fluorothioanisole (CAS: 371-15-3; Formula: FC6H4SCH3; MW: 142.19) is a valuable organic compound utilized as a building block in chemical synthesis. Its fluorinated aromatic structure and thioether functionality make it a useful intermediate for introducing specific moieties into more complex molecules. This compound finds application in various research and development settings, particularly within the fields of organic chemistry and materials science.
- IUPAC
- 4-Fluorophenyl methyl sulfide

Organic Synthesis Intermediate
4-Fluorothioanisole serves as a versatile intermediate in the synthesis of complex organic molecules. Its structure allows for further functionalization, making it a key component in multi-step synthetic pathways for novel compounds.
Fluorinated Compound Research
As a fluorinated aromatic compound, it is employed in research focused on the incorporation of fluorine into organic structures, which can significantly alter a molecule's properties, such as lipophilicity and metabolic stability.
Building Block for Specialty Chemicals
This compound functions as a fundamental building block for the development of specialty chemicals. Researchers can leverage its reactive sites to construct targeted molecules for various industrial and academic applications.
| Molecular weight | 142.19 |
|---|---|
| Linear formula | FC6H4SCH3 |
| Assay | 97% |
| Boiling point | 184-185 °C(lit.) |
| Density | 1.167 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.551(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 74 °C / 165.2 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Fluorothioanisole used for?
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4-Fluorothioanisole is used as a building block and intermediate in organic synthesis, particularly for research and development in creating fluorinated organic compounds and specialty chemicals.
What is the CAS number and formula for 4-Fluorothioanisole?
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The CAS number is 371-15-3 and the linear formula is FC6H4SCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Fluorothioanisole with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Fluorothioanisole be handled safely?
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4-Fluorothioanisole is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). It requires the use of safety equipment such as eyeshields, gloves, and appropriate respiratory protection (type ABEK EN14387 filter recommended).
Is 4-Fluorothioanisole available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Fluorothioanisole, adhering to all relevant shipping regulations.
How can I request a quote or sample for 4-Fluorothioanisole?
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Please contact our sales team through the website or by phone to request a quote or a sample of 4-Fluorothioanisole.
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