2-Chloroethyl isothiocyanate
2-Chloroethyl isothiocyanate (CAS: 6099-88-3), with the linear formula ClCH2CH2NCS and a molecular weight of 121.59 g/mol, is a valuable organic building block. This sulfur-containing compound is employed in chemical synthesis, particularly for introducing the isothiocyanate moiety into various organic structures. Its reactivity makes it a useful intermediate in the development of novel compounds within research and industrial settings.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its reactive isothiocyanate group allows for facile derivatization and incorporation into diverse chemical structures.
Building Block for Heterocycles
Serves as a precursor for the construction of various heterocyclic compounds. The chloroethyl and isothiocyanate functionalities offer versatile reaction pathways.
Reagent in Pharmaceutical Research
Applied in the research and development of potential pharmaceutical agents. Its structure can be a starting point for creating biologically active molecules.
| Molecular weight | 121.59 |
|---|---|
| Linear formula | ClCH2CH2NCS |
| Assay | 98% |
| Boiling point | 80 °C/13 mmHg(lit.) |
| Density | 1.265 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.556(lit.) |



Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 43 °C / 109.4 °F |
| Transport (UN / ADR) | UN 3080 6.1/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-20/21/22-36/37/38-42 |
| Safety statements (S) | 26-36 |
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-Chloroethyl isothiocyanate used for?
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2-Chloroethyl isothiocyanate (CAS: 6099-88-3) is primarily used as an intermediate and building block in organic synthesis, including the development of potential pharmaceutical agents and heterocyclic compounds.
What is the CAS number and chemical formula for 2-Chloroethyl isothiocyanate?
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The CAS number is 6099-88-3 and the linear chemical formula is ClCH2CH2NCS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloroethyl isothiocyanate with an assay of 98%. This product is suitable for research and chemical synthesis; TSS does not represent it as USP, BP, or EP grade.
How should 2-Chloroethyl isothiocyanate be handled safely?
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2-Chloroethyl isothiocyanate is a flammable liquid and vapour (H226), harmful if swallowed (H302), in contact with skin (H312), or if inhaled (H332). It causes skin irritation (H315), serious eye irritation (H319), and may cause allergy or asthma symptoms or breathing difficulties if inhaled (H334), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area.
Is 2-Chloroethyl isothiocyanate shipped internationally?
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Yes, Tech Serve Solutions, as a specialist global supplier and exporter since 1998, can export 2-Chloroethyl isothiocyanate to customers worldwide, adhering to all shipping regulations.
How can I request a quote or sample for 2-Chloroethyl isothiocyanate?
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To request a quote or sample for 2-Chloroethyl isothiocyanate, please contact our sales team through the website or by phone, providing your contact details and the required quantity.
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