2-Chlorothiophenol
2-Chlorothiophenol (CAS: 6320-03-2), with the molecular formula ClC6H4SH and a molar mass of 144.62 g/mol, is a chlorinated aromatic thiol. This compound serves as a valuable building block in organic synthesis, particularly for the preparation of specialized organic compounds and sulfur-containing molecules. Its distinct chemical properties make it a useful reagent for creating complex molecular architectures in research and development settings.
- IUPAC
- 2-Chlorobenzenethiol
- Synonyms
- 2-Chlorobenzenethiol

Synthesis of Aromatic Disulfides
2-Chlorothiophenol can be employed in the synthesis of specific aromatic disulfide analogues. For instance, it has been used to prepare the bis(2-chlorophenyl) analog of aromatic disulfide, contributing to the study of sulfur-containing organic compounds.
Organic Building Block
As an organic building block, 2-Chlorothiophenol is utilized in the construction of more complex molecules. Its reactive thiol group and chlorinated aromatic ring offer versatile synthetic pathways for various chemical research applications.
Chemical Synthesis Reagent
This compound functions as a reagent in diverse chemical synthesis processes. Its utility lies in its ability to introduce the 2-chlorothiophenyl moiety into target molecules, facilitating the development of new chemical entities.
| Molecular weight | 144.62 |
|---|---|
| Linear formula | ClC6H4SH |
| Assay | 99% |
| Boiling point | 205-206 °C/260 mmHg(lit.) |
| Density | 1.275 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.6029(lit.) |
| Application | 2-Chlorothiophenol has been used in the synthesis of bis (2-chlorophenyl) analog of aromatic disulfide1. |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 88 °C / 190.4 °F |
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 2-Chlorothiophenol used for?
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2-Chlorothiophenol is primarily used as a building block and reagent in organic synthesis, including the preparation of specific aromatic disulfide analogues. It is valuable for introducing the 2-chlorothiophenyl group into more complex molecules.
What are the CAS number and chemical formula for 2-Chlorothiophenol?
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The CAS number for 2-Chlorothiophenol is 6320-03-2, and its chemical formula is ClC6H4SH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chlorothiophenol with an assay of 99%. TSS does not represent this product as USP, BP, or EP grade.
What are the safety and handling considerations for 2-Chlorothiophenol?
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2-Chlorothiophenol is classified as Danger with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including a full-face respirator, gloves, and goggles, must be used. Handle with extreme care in a well-ventilated area.
How is 2-Chlorothiophenol packed, shipped, and exported?
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2-Chlorothiophenol is packed in compliance with international regulations for hazardous materials. TSS exports this chemical globally, adhering to all necessary shipping and customs requirements for UN 3265, Class 8, PG II.
How can I request a sample or quote for 2-Chlorothiophenol?
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To request a sample or obtain a quote for 2-Chlorothiophenol, please contact our sales department through the website or by phone, providing your specific requirements and shipping details.
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