4-Chlorobenzyl isocyanate
4-Chlorobenzyl isocyanate (CAS: 30280-44-5, Formula: ClC6H4CH2NCO) is a valuable organic building block with a molecular weight of 167.59 g/mol. This compound features a reactive isocyanate group, making it an important intermediate in organic synthesis. It is commonly employed in the preparation of various derivatives for research and development purposes. Tech Serve Solutions supplies this chemical for laboratory and industrial applications.

Organic Synthesis Intermediate
4-Chlorobenzyl isocyanate serves as a key intermediate in the synthesis of more complex organic molecules. Its reactive isocyanate functionality readily participates in addition reactions with nucleophiles.
Pharmaceutical Research
This compound can be utilised in the development of novel pharmaceutical agents. It is a precursor for creating diverse chemical structures with potential biological activity.
Agrochemical Development
The isocyanate group allows for its incorporation into molecules designed for agricultural applications, such as herbicides or insecticides. It acts as a building block for new agrochemical compounds.
Material Science Research
4-Chlorobenzyl isocyanate can be used in the synthesis of specialised polymers and materials. The introduction of the chlorobenzyl moiety can impart specific properties to the resulting materials.
| Molecular weight | 167.59 |
|---|---|
| Linear formula | ClC6H4CH2NCO |
| Assay | 97% |
| Boiling point | 233-234 °C(lit.) |
| Density | 1.265 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5460(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 |
| 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 |
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 4-Chlorobenzyl isocyanate used for?
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4-Chlorobenzyl isocyanate is primarily used as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and novel materials. It is a valuable building block for creating complex organic molecules.
What are the CAS number and chemical formula for 4-Chlorobenzyl isocyanate?
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The CAS number for 4-Chlorobenzyl isocyanate is 30280-44-5, and its chemical formula is ClC6H4CH2NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Chlorobenzyl isocyanate with an assay of 97%. We do not represent this product as USP, BP, or EP grade; it is suitable for research and general laboratory use.
What are the main hazards associated with 4-Chlorobenzyl isocyanate?
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4-Chlorobenzyl isocyanate is classified as dangerous. It is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation. It may also cause respiratory irritation and allergic skin reaction. Appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, must be used.
How is 4-Chlorobenzyl isocyanate shipped and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures that 4-Chlorobenzyl isocyanate is packed and shipped in compliance with all relevant international regulations for hazardous materials.
How can I request a sample or quote for 4-Chlorobenzyl isocyanate?
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To request a sample or quote for 4-Chlorobenzyl isocyanate, please contact the Tech Serve Solutions sales team through our website or by phone. Our experts will assist you promptly.
What are the recommended storage conditions for 4-Chlorobenzyl isocyanate?
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4-Chlorobenzyl isocyanate should be stored under refrigeration at 2-8°C to maintain its stability and quality.
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