4-Chlorothioanisole
4-Chlorothioanisole (CAS: 123-09-1, ClC6H4SCH3) is a versatile organosulfur compound with a molecular weight of 158.65 g/mol. Available from Tech Serve Solutions with an assay of 98%, this chemical serves as a valuable building block in organic synthesis and chemical research. Its properties lend themselves to various synthetic pathways, making it a useful intermediate for creating more complex molecules in academic and industrial laboratories.
- IUPAC
- 4-Chlorophenyl methyl sulfide
- Synonyms
- 4-Chlorophenyl methyl sulfide

Organic Synthesis Intermediate
4-Chlorothioanisole is employed as a key intermediate in the synthesis of complex organic molecules. Its functional groups allow for diverse chemical transformations, contributing to the development of new compounds in pharmaceutical and material science research.
Chemical Research Reagent
As a sulfur-containing organic building block, this compound is utilised in various research settings. It aids in the exploration of novel chemical reactions and the creation of diverse molecular structures for scientific investigation.
Building Block for Specialty Chemicals
The structure of 4-Chlorothioanisole makes it suitable for incorporation into a range of specialty chemicals. Its utility lies in constructing specific molecular architectures for advanced applications.
| Molecular weight | 158.65 |
|---|---|
| Linear formula | ClC6H4SCH3 |
| Assay | 98% |
| Boiling point | 168-169 °C(lit.) |
| Density | 1.22 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.598(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 23-26-36/37/39 |
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-Chlorothioanisole used for?
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4-Chlorothioanisole is primarily used as a building block and intermediate in organic synthesis and chemical research, contributing to the creation of more complex molecules.
What is the CAS number and chemical formula for 4-Chlorothioanisole?
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The CAS number for 4-Chlorothioanisole is 123-09-1, and its chemical formula is ClC6H4SCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Chlorothioanisole with an assay of 98%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 4-Chlorothioanisole be handled safely?
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4-Chlorothioanisole is classified as harmful if swallowed (H302). Safe handling requires appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, in well-ventilated areas.
Is 4-Chlorothioanisole exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Chlorothioanisole.
How can I request a quote or sample for 4-Chlorothioanisole?
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To request a quote or sample of 4-Chlorothioanisole, please contact our sales team through the website or by phone. We are happy to assist with your specific requirements.
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