3-Chlorophenethyl isocyanate
3-Chlorophenethyl isocyanate (CAS 62334-11-6) is a reactive organic compound with the molecular formula C9H8ClNO and a molecular weight of 181.62 g/mol. This isocyanate is characterised by its potential for versatile chemical transformations, serving as a key intermediate in the synthesis of more complex molecules. It is primarily utilised as a building block in chemical synthesis, particularly within the pharmaceutical and agrochemical industries.

Chemical Synthesis Intermediate
3-Chlorophenethyl isocyanate functions as a valuable intermediate in organic synthesis. Its reactive isocyanate group readily participates in addition reactions with nucleophiles, enabling the construction of diverse chemical structures.
Building Block for Pharmaceuticals
This compound is employed as a strategic building block for the development of novel pharmaceutical agents. The incorporation of the 3-chlorophenethyl moiety can influence the pharmacokinetic and pharmacodynamic properties of drug candidates.
Agrochemical Research
The unique structure of 3-Chlorophenethyl isocyanate makes it a useful component in the research and development of new agrochemicals. It can be incorporated into molecules designed for crop protection applications.
| Molecular weight | 181.62 |
|---|---|
| Empirical formula | C9H8ClNO |
| Assay | 97% |
| Density | 1.2400 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.539(lit.) |


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 2206 6.1/PG 3 |
| 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 3-Chlorophenethyl isocyanate used for?
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3-Chlorophenethyl isocyanate is primarily used as a building block and intermediate in chemical synthesis, particularly for the development of pharmaceuticals and agrochemicals.
What is the CAS number and chemical formula for 3-Chlorophenethyl isocyanate?
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The CAS number is 62334-11-6, and the empirical formula (Hill notation) is C9H8ClNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Chlorophenethyl isocyanate with an assay of 97%. This product is intended for chemical synthesis and laboratory research; TSS does not represent it as USP, BP, or EP grade.
How should 3-Chlorophenethyl isocyanate be handled?
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Handling requires strict adherence to safety protocols due to its hazardous nature. It is harmful if swallowed, in contact with skin, or if inhaled, causes skin irritation, serious eye irritation, and may cause respiratory irritation and allergy or asthma symptoms or breathing difficulties if inhaled. Appropriate personal protective equipment, including eyeshields, face shields, gloves, and a suitable respirator, must be used. Work should be conducted in a well-ventilated area.
Is 3-Chlorophenethyl isocyanate a controlled substance?
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Based on the provided data, there is no indication that 3-Chlorophenethyl isocyanate is a controlled substance.
How is 3-Chlorophenethyl isocyanate packed and shipped?
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3-Chlorophenethyl isocyanate is shipped as UN 2206, Hazard Class 6.1, Packing Group III. Specific packing configurations are available upon request, and TSS complies with all export regulations.
How can I request a quote or sample of 3-Chlorophenethyl isocyanate?
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To request a quote or sample, please contact the Tech Serve Solutions sales team through our website or by phone. Our team will assist you with your requirements.
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