Trichloromethanesulfenyl chloride
Trichloromethanesulfenyl chloride (CAS 594-42-3), with the molecular formula CCl3SCl and a molecular weight of 185.89 g/mol, is a reactive organic sulfur compound. It functions as a versatile intermediate in chemical synthesis, particularly in the preparation of various sulfur-containing organic molecules. Its utility spans research and industrial applications requiring precise chemical transformations. Tech Serve Solutions supplies this compound for professional use, adhering to strict quality standards.
- IUPAC
- Perchloromethyl mercaptan

Organic Synthesis Intermediate
Trichloromethanesulfenyl chloride serves as a key building block in organic synthesis. It is employed in the introduction of the trichloromethanesulfenyl group into various organic substrates, facilitating the creation of complex molecules.
Reagent for Heterocyclic Chemistry
This compound is utilised in the synthesis of sulfur-containing heterocyclic compounds. Its reactivity allows for diverse cyclization reactions, leading to novel ring systems relevant in medicinal chemistry and material science.
Precursor for Agrochemicals and Pharmaceuticals
It acts as a precursor in the development of certain agrochemicals and pharmaceutical intermediates. The unique functional group allows for tailored modifications to develop molecules with specific biological activities.
| Molecular weight | 185.89 |
|---|---|
| Linear formula | CCl3SCl |
| Assay | 99% |
| Boiling point | 146-148 °C(lit.) |
| Density | 1.7 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.537(lit.) |
| Vapour pressure | 2.02 psi (20 °C) |
| Vapour density | 6.41 (vs air) |


Hazard statements
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
- 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 |
|---|---|
| Transport (UN / ADR) | UN 1670 6.1 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/24/25-34-52/53 |
| Safety statements (S) | 7/9-26-36/37/39-45-61 |
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 Trichloromethanesulfenyl chloride used for?
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Trichloromethanesulfenyl chloride is primarily used as a building block and intermediate in organic synthesis, particularly for creating sulfur-containing compounds and heterocycles, with applications in agrochemicals and pharmaceuticals.
What are the CAS number and formula for Trichloromethanesulfenyl chloride?
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The CAS number for Trichloromethanesulfenyl chloride is 594-42-3, and its molecular formula is CCl3SCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions typically supplies Trichloromethanesulfenyl chloride with an assay of 99%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP.
How should Trichloromethanesulfenyl chloride be handled safely?
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Trichloromethanesulfenyl chloride is a dangerous substance requiring stringent safety protocols. It is corrosive and toxic, necessitating the use of full-face respirators, chemical-resistant gloves, goggles, and protective clothing. Handle only in well-ventilated areas or fume hoods and seek immediate medical attention in case of exposure.
How is Trichloromethanesulfenyl chloride packed and shipped?
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Trichloromethanesulfenyl chloride is packed and shipped according to international regulations for hazardous materials, ensuring safe transport to researchers and industrial clients worldwide. UN 1670, Class 6.1, Packing Group I apply.
How can I request a sample or quote for Trichloromethanesulfenyl chloride?
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To request a sample or a quote for Trichloromethanesulfenyl chloride, please contact the Tech Serve Solutions sales team through our website or by calling us directly.
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