3,4-Dichlorophenethyl isocyanate
3,4-Dichlorophenethyl isocyanate (CAS: 115706-18-8), with the linear formula Cl₂C₆H₃CH₂CH₂NCO and a molecular weight of 216.06 g/mol, is a reactive organic building block. This compound is primarily utilised in chemical synthesis as an intermediate for creating more complex molecules. Its isocyanate functionality makes it valuable in various organic reactions. Tech Serve Solutions supplies this chemical for research and development purposes.
- Synonyms
- Cl2C6H3CH2CH2NCO

Organic Synthesis Intermediate
3,4-Dichlorophenethyl isocyanate serves as a crucial intermediate in the synthesis of various organic compounds. Its reactive isocyanate group readily participates in addition reactions, facilitating the construction of complex molecular architectures.
Building Block for Specialty Chemicals
This compound acts as a versatile building block in the development of specialty chemicals. It can be incorporated into molecules to introduce specific functional groups or structural motifs required for advanced applications.
Research and Development
Utilised in academic and industrial research settings, 3,4-Dichlorophenethyl isocyanate aids in exploring novel synthetic pathways and discovering new chemical entities. Its properties are of interest for reaction mechanism studies.
| Molecular weight | 216.06 |
|---|---|
| Linear formula | Cl2C6H3CH2CH2NCO |
| Assay | 97% |
| Boiling point | 304-305 °C(lit.) |
| Density | 1.317 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.557(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 | 92 °C / 197.6 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42 |
| Safety statements (S) | 23-26-36-45 |
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 3,4-Dichlorophenethyl isocyanate used for?
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3,4-Dichlorophenethyl isocyanate is primarily used as an intermediate in organic synthesis and as a building block for creating more complex molecules in research and development settings.
What are the CAS number and formula for 3,4-Dichlorophenethyl isocyanate?
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The CAS number for 3,4-Dichlorophenethyl isocyanate is 115706-18-8, and its linear formula is Cl₂C₆H₃CH₂CH₂NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Dichlorophenethyl isocyanate with an assay of 97%. We do not represent this product as meeting USP, BP, EP, or pharmacopoeia standards.
How should 3,4-Dichlorophenethyl isocyanate be handled safely?
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This compound is dangerous and requires careful handling. It can cause harm if swallowed, inhaled, or absorbed through the skin, and can cause skin and eye irritation. It may also cause respiratory irritation and trigger allergic reactions in the respiratory tract. Always use appropriate personal protective equipment, including eyeshields, face shields, gloves, and a suitable respirator, in a well-ventilated area.
How is 3,4-Dichlorophenethyl isocyanate packed and exported?
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Tech Serve Solutions carefully packs and exports 3,4-Dichlorophenethyl isocyanate in compliance with all relevant transportation regulations. Further details on packaging and shipping can be provided upon request.
How can I request a quote or sample for 3,4-Dichlorophenethyl isocyanate?
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To request a quote or sample of 3,4-Dichlorophenethyl isocyanate, please contact our sales team through the website or by phone, providing your specific requirements.
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