2-Chlorobenzyl isocyanate
2-Chlorobenzyl isocyanate (CAS: 55204-93-8; Formula: ClC6H4CH2NCO; MW: 167.59) is a versatile organic compound. Supplied with an assay of 97%, it serves as a valuable building block in chemical synthesis, particularly within the realm of isocyanates and nitrogen-containing organic molecules. Its properties make it a key intermediate for researchers and manufacturers developing novel chemical entities.

Organic Synthesis Intermediate
2-Chlorobenzyl isocyanate is employed as a reactive intermediate in the synthesis of more complex organic molecules. Its isocyanate group readily participates in addition reactions with nucleophiles.
Pharmaceutical and Agrochemical Research
This compound can serve as a precursor in the development of potential pharmaceutical agents or agrochemicals. Its structure provides a scaffold for introducing specific functionalities into target molecules.
Materials Science Research
The reactivity of the isocyanate moiety may find application in research related to polymer modification or the synthesis of novel materials, where covalent functionalization is desired.
| Molecular weight | 167.59 |
|---|---|
| Linear formula | ClC6H4CH2NCO |
| Assay | 97% |
| Boiling point | 238 °C(lit.) |
| Density | 1.149 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.547(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
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °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 |
| Safety statements (S) | 26-36/37/39 |
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-Chlorobenzyl isocyanate used for?
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2-Chlorobenzyl isocyanate is primarily used as a building block and intermediate in organic synthesis, with potential applications in pharmaceutical, agrochemical, and materials science research.
What are the CAS number and chemical formula for 2-Chlorobenzyl isocyanate?
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The CAS number is 55204-93-8, and the chemical formula is ClC6H4CH2NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chlorobenzyl isocyanate with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2-Chlorobenzyl isocyanate be handled safely?
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2-Chlorobenzyl isocyanate is a Warning substance, classified with hazards H302, H312, H315, H319, H332, and H335. Appropriate personal protective equipment including eyeshields, face shields, gloves, and respiratory protection (e.g., type ABEK respirator filter) must be used. Ensure adequate ventilation and avoid contact with skin, eyes, and clothing.
How is 2-Chlorobenzyl isocyanate packed, shipped, or exported?
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As a global supplier and exporter, Tech Serve Solutions ensures appropriate packaging and adherence to regulations for the shipment of chemicals like 2-Chlorobenzyl isocyanate.
How can I request a sample or quote for 2-Chlorobenzyl isocyanate?
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Please contact our sales team via the website to request a sample or a quotation for 2-Chlorobenzyl isocyanate.
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