3,4-Dimethylbenzenethiol
3,4-Dimethylbenzenethiol (CAS: 18800-53-8) is an organic sulfur compound with the linear formula (CH₃)₂C₆H₃SH and a molecular weight of 138.23 g/mol. Also known as 3,4-Dimethylthiophenol, this chemical serves as a valuable building block in organic synthesis. It is supplied by Tech Serve Solutions with a purity of 98%, suitable for research and development applications.
- IUPAC
- 3,4-Dimethylthiophenol
- Synonyms
- 3,4-Dimethylthiophenol(CH3)2C6H3SH

Chemical Synthesis
3,4-Dimethylbenzenethiol is utilised as a reagent in various organic synthesis pathways. Its thiol group allows for diverse chemical transformations, making it a useful intermediate for creating more complex molecules.
Research and Development
This compound finds application in laboratory research settings for exploring novel chemical reactions and developing new materials. Its specific structure lends itself to targeted synthetic strategies.
Building Block for Organic Molecules
As an organic building block, 3,4-Dimethylbenzenethiol contributes to the construction of sophisticated organic structures. It is particularly relevant in studies involving sulfur-containing compounds.
| Molecular weight | 138.23 |
|---|---|
| Linear formula | (CH3)2C6H3SH |
| Assay | 98% |
| Boiling point | 218 °C(lit.) |
| Density | 1.027 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5736(lit.) |
| Application | 3,4-Dimethylbenzenethiol may be used in chemical synthesis studies. |

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 | 90 °C / 194 °F |
| Transport (UN / ADR) | UN 3334 |
| 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 3,4-Dimethylbenzenethiol used for?
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3,4-Dimethylbenzenethiol is primarily used in chemical synthesis studies as an organic building block.
What are the CAS number and formula for 3,4-Dimethylbenzenethiol?
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The CAS number for 3,4-Dimethylbenzenethiol is 18800-53-8 and its linear formula is (CH₃)₂C₆H₃SH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dimethylbenzenethiol with an assay of 98%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade unless explicitly stated.
How should 3,4-Dimethylbenzenethiol be handled safely?
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3,4-Dimethylbenzenethiol is a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation.
Is 3,4-Dimethylbenzenethiol a controlled substance?
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The provided data does not indicate that 3,4-Dimethylbenzenethiol is a controlled substance.
How can I request a sample or quote for 3,4-Dimethylbenzenethiol?
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To request a sample or quote, please contact our sales team via the website or by phone. We are a global supplier and exporter of fine chemicals.
How is 3,4-Dimethylbenzenethiol packed and exported?
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3,4-Dimethylbenzenethiol is carefully packed according to safety regulations for international export. Specific packaging details can be provided upon request for UN 3334 shipments.
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