2-(4-Chlorophenethyl)isothiocyanate
2-(4-Chlorophenethyl)isothiocyanate (CAS: 17608-10-5) is a chemical compound with the empirical formula C9H8ClNS and a molecular weight of 197.68 g/mol. It belongs to the thiocyanates/isothiocyanates and sulfur compounds categories. This organic building block is primarily utilised in chemical synthesis and research applications, serving as a valuable intermediate for creating more complex molecular structures.
- IUPAC
- 2-(4-Chlorophenyl)ethyl isothiocyanate

Organic Synthesis Intermediate
This compound serves as a versatile building block in organic synthesis. Its isothiocyanate functional group allows for various addition and cyclization reactions, facilitating the construction of diverse heterocyclic compounds and other complex organic molecules.
Chemical Research
Utilised in academic and industrial research laboratories for exploring novel chemical pathways and developing new synthetic methodologies. Its specific structure makes it a candidate for investigating structure-activity relationships in medicinal chemistry and materials science.
Fine Chemical Manufacturing
Employed as a precursor in the manufacturing of specialised fine chemicals. It can be incorporated into multi-step syntheses leading to products with potential applications in pharmaceuticals or agrochemicals, requiring precise chemical transformations.
| Molecular weight | 197.68 |
|---|---|
| Empirical formula | C9H8ClNS |
| Assay | 97% |
| Density | 1.215 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.6000(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- 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 | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42 |
| Safety statements (S) | 26-36/37 |
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-(4-Chlorophenethyl)isothiocyanate used for?
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2-(4-Chlorophenethyl)isothiocyanate is used as a versatile building block in organic synthesis, primarily for chemical research and the manufacturing of fine chemicals. Its isothiocyanate group enables it to participate in various synthetic transformations for creating complex molecules.
What are the CAS number and molecular formula for 2-(4-Chlorophenethyl)isothiocyanate?
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The CAS number for 2-(4-Chlorophenethyl)isothiocyanate is 17608-10-5. The empirical formula is C9H8ClNS, and the molecular weight is 197.68 g/mol.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-(4-Chlorophenethyl)isothiocyanate with an assay of 97%. We do not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
How should 2-(4-Chlorophenethyl)isothiocyanate be handled safely?
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This compound is classified as dangerous. It is harmful if swallowed, in contact with skin, or if inhaled, and causes skin, serious eye, and respiratory irritation. It may also cause allergy or asthma symptoms or breathing difficulties if inhaled. Always wear appropriate personal protective equipment, including eyeshields, gloves, and use in a well-ventilated area or with a suitable respirator. Refer to the safety data sheet for full details.
How is 2-(4-Chlorophenethyl)isothiocyanate packed and shipped?
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2-(4-Chlorophenethyl)isothiocyanate is packed and shipped according to relevant regulations for chemical substances, ensuring safe transit. For international export, it adheres to all necessary shipping requirements.
How can I request a quote or sample?
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To request a quote or a sample of 2-(4-Chlorophenethyl)isothiocyanate, please contact our sales department via the website or email, providing your details and requirements.
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