4-Isocyanatobenzophenone
4-Isocyanatobenzophenone (CAS 63648-38-4) is an organic compound with the formula C6H5C(O)C6H4NCO and a molecular weight of 223.23 g/mol. This chemical, characterised by its benzophenone and isocyanate functionalities, serves as a valuable building block in organic synthesis. It is primarily utilised in the development of novel materials and complex organic molecules, finding applications in research and industrial chemical synthesis processes.

Organic Synthesis Intermediate
4-Isocyanatobenzophenone acts as a key intermediate in the synthesis of various organic compounds. Its reactive isocyanate group readily participates in addition reactions with nucleophiles, enabling the formation of diverse molecular structures.
Material Science Research
This compound can be employed in the research and development of new polymers and functional materials. The incorporation of the benzophenone moiety can impart unique photochemical or physical properties to the resulting materials.
Pharmaceutical Intermediate Development
It serves as a building block in the exploration of novel pharmaceutical candidates. The specific structure allows for its integration into complex drug molecules during early-stage research and development.
| Molecular weight | 223.23 |
|---|---|
| Linear formula | C6H5C(O)C6H4NCO |
| Assay | 97% |
| Melting point | 69-73 °C(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 |
|---|---|
| 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-Isocyanatobenzophenone used for?
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4-Isocyanatobenzophenone is used as a building block in organic synthesis, particularly in the development of new materials and complex organic molecules for research purposes.
What is the CAS number and chemical formula for 4-Isocyanatobenzophenone?
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The CAS number for 4-Isocyanatobenzophenone is 63648-38-4, and its chemical formula is C6H5C(O)C6H4NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Isocyanatobenzophenone with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Isocyanatobenzophenone be handled safely?
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4-Isocyanatobenzophenone is classified with GHS symbols GHS07 and GHS08, with a 'Danger' signal word. It presents hazards including harm if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation and respiratory irritation. Appropriate personal protective equipment, including eyeshields, gloves, and a full-face respirator suitable for organic vapours and particulates, is essential. Handle in a well-ventilated area and avoid breathing dust/fume/gas/mist/vapours/spray. Refer to the Safety Data Sheet for comprehensive handling and emergency procedures.
How is 4-Isocyanatobenzophenone packed and shipped?
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4-Isocyanatobenzophenone is carefully packed according to industry standards to ensure safe transit. As a global supplier, Tech Serve Solutions exports chemicals worldwide, adhering to all relevant shipping regulations.
How can I request a sample or quote for 4-Isocyanatobenzophenone?
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To request a sample or a quote for 4-Isocyanatobenzophenone, please contact our sales team through the website or provide your details via the online enquiry form.
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