2,4,5-Trichlorophenyl isocyanate
2,4,5-Trichlorophenyl isocyanate (CAS: 26328-35-8) is an organic compound with the linear formula Cl3C6H2NCO and a molecular weight of 222.46 g/mol. This reactive isocyanate serves as a valuable building block in organic synthesis. Its primary applications lie in the creation of novel chemical entities and complex molecular structures within research and development settings.
- Synonyms
- 26328-35-8Cl3C6H2NCO

Organic Synthesis Intermediate
Utilised as a key intermediate for introducing the 2,4,5-trichlorophenyl group into various organic molecules. Its isocyanate functionality readily reacts with nucleophiles like alcohols and amines to form carbamates and ureas, respectively.
Research and Development
Essential reagent in academic and industrial research for the exploration of new chemical pathways and the synthesis of potential pharmaceutical or agrochemical candidates. Enables the construction of diverse molecular frameworks.
Material Science
Can be employed in the development of specialised polymers or functional materials where the trichlorophenyl moiety imparts specific properties. Used in controlled research environments.
| Molecular weight | 222.46 |
|---|---|
| Linear formula | Cl3C6H2NCO |
| Assay | 95% |
| Melting point | 55-61 °C(lit.) |

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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 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 2,4,5-Trichlorophenyl isocyanate used for?
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2,4,5-Trichlorophenyl isocyanate is primarily used as a building block in organic synthesis for creating new chemical entities in research and development settings.
What is the CAS number and formula for 2,4,5-Trichlorophenyl isocyanate?
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The CAS number is 26328-35-8 and the linear formula is Cl3C6H2NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4,5-Trichlorophenyl isocyanate with an assay of 95%. We do not represent this product as USP, BP, EP or any other pharmacopoeia grade.
How should 2,4,5-Trichlorophenyl isocyanate be handled safely?
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Handle with appropriate personal protective equipment including Eyeshields, Gloves, and a dust mask type N95 (US). Avoid breathing dust/fume/gas/mist/vapours/spray. Wash skin thoroughly after handling. It is classified as Harmful if swallowed, in contact with skin or if inhaled, and causes skin and eye irritation.
How is 2,4,5-Trichlorophenyl isocyanate packed, shipped, and exported?
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2,4,5-Trichlorophenyl isocyanate is carefully packed according to international shipping regulations. TSS is an experienced global supplier and exporter of fine chemicals, ensuring compliant and reliable delivery worldwide.
How can I request a sample or quote for 2,4,5-Trichlorophenyl isocyanate?
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To request a sample or a quote, please visit the Tech Serve Solutions website and use the 'Contact Us' form or call our sales department directly.
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