4-Phenoxyphenyl isocyanate
4-Phenoxyphenyl isocyanate (CAS 59377-19-4), with the molecular formula C13H9NO2 and a molecular weight of 211.22 g/mol, is a versatile organic intermediate. This compound serves as a valuable building block in chemical synthesis, particularly in the creation of polymers and potentially in pharmaceutical research. Its reactivity as an isocyanate makes it suitable for various chemical transformations.

Chemical Synthesis Intermediate
Utilised as a key building block in organic synthesis, 4-Phenoxyphenyl isocyanate facilitates the introduction of the 4-phenoxyphenyl moiety into complex molecules. Its isocyanate group readily reacts with nucleophiles, making it useful for creating diverse chemical structures.
Polymer Development
The isocyanate functionality suggests potential applications in the synthesis of polyurethanes, polyureas, or other polymers. It can be incorporated into polymer backbones or used as a cross-linking agent to modify material properties.
Research and Development
Employed in research laboratories for exploring novel chemical reactions and developing new compounds with potential applications in materials science or medicinal chemistry. Its specific structure allows for targeted derivatization.
| Molecular weight | 211.22 |
|---|---|
| Linear formula | C6H5OC6H4NCO |
| Assay | 98% |
| Boiling point | 170 °C/3 mmHg(lit.) |
| Density | 1.169 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.595(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 | 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 |
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-Phenoxyphenyl isocyanate used for?
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4-Phenoxyphenyl isocyanate is primarily used as a building block in chemical synthesis and potentially in the development of polymers. It serves as an intermediate for creating more complex organic molecules in research and industrial settings.
What is the CAS number and molecular formula for 4-Phenoxyphenyl isocyanate?
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The CAS number for 4-Phenoxyphenyl isocyanate is 59377-19-4, and its molecular formula is C13H9NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Phenoxyphenyl isocyanate with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Phenoxyphenyl isocyanate be handled safely?
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4-Phenoxyphenyl isocyanate is classified with warning signal words and hazard statements including H302, H312, H315, H319, H332, and H335. Appropriate personal protective equipment such as eyeshields, gloves, and a suitable respirator filter (e.g., ABEK) is essential. It is a combustible liquid with a flash point of 113°C.
How is 4-Phenoxyphenyl isocyanate packed, shipped, and exported?
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Tech Serve Solutions offers 4-Phenoxyphenyl isocyanate in various pack sizes suitable for laboratory and industrial use. We adhere to strict regulations for the packing, shipping, and export of chemicals, ensuring safe and compliant delivery worldwide.
How can I request a sample or quote for 4-Phenoxyphenyl isocyanate?
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To request a sample or a quote for 4-Phenoxyphenyl isocyanate, please contact our sales team via the website or by phone. Our representatives will be pleased to assist you with your requirements.
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