Chloromethyl thiocyanate
Chloromethyl thiocyanate (CAS: 3268-79-9), with the linear formula ClCH₂SCN and a molecular weight of 107.56 g/mol, is a chemical compound primarily utilised as a building block in organic synthesis. It serves as a versatile reagent for introducing the thiocyanate group into various organic molecules. This compound is essential in chemical research and development for creating novel chemical entities and intermediates.

Organic Synthesis Intermediate
Chloromethyl thiocyanate functions as a key intermediate in the synthesis of more complex organic molecules. Its reactive chloromethyl group and thiocyanate moiety allow for diverse chemical transformations.
Reagent for Sulfur-Containing Compounds
It is employed in the preparation of various sulfur-containing organic compounds, including heterocycles and other functionalised molecules, due to the presence of the thiocyanate group.
Research and Development
This compound is valuable in academic and industrial research laboratories for exploring new synthetic pathways and developing novel materials or pharmaceutical leads.
| Molecular weight | 107.56 |
|---|---|
| Linear formula | ClCH2SCN |
| Assay | 97% |
| Boiling point | 76-78 °C/15 mmHg(lit.) |
| Density | 1.37 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.515(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 84 °C / 183.2 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-32 |
| Safety statements (S) | 13-36/37 |
| Supplemental hazards | Contact with acids liberates very toxic gas. |
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 Chloromethyl thiocyanate used for?
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Chloromethyl thiocyanate (CAS: 3268-79-9) is primarily used as a building block in organic synthesis and as a reagent for introducing thiocyanate groups into organic molecules.
What are the CAS number and formula for Chloromethyl thiocyanate?
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The CAS number is 3268-79-9 and the linear formula is ClCH₂SCN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chloromethyl thiocyanate with an assay of 97%. This is a technical/research grade, and we do not represent it as USP, BP, or EP grade.
How should Chloromethyl thiocyanate be handled safely?
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Chloromethyl thiocyanate is harmful if swallowed, in contact with skin, or if inhaled (H302-H312-H332). It releases very toxic gas upon contact with acids. Appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, must be used. Store away from acids.
How is Chloromethyl thiocyanate packed, shipped, and exported?
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Chloromethyl thiocyanate is packed and shipped according to relevant transport regulations (UN 2810, 6.1/PGII). Tech Serve Solutions exports fine chemicals globally, adhering to international shipping standards.
How can I request a sample or quote for Chloromethyl thiocyanate?
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To request a sample or obtain a quote for Chloromethyl thiocyanate, please contact our sales department through the website or by phone, providing your specific requirements.
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