Phenyl isocyanatoformate
Phenyl isocyanatoformate (CAS 5843-43-6) is an organic compound with the linear formula OCNCO₂C₆H₅ and a molecular weight of 163.13 g/mol. This chemical is a valuable building block primarily used in organic synthesis. Its reactivity as an isocyanate makes it suitable for introducing specific functional groups in the preparation of more complex molecules within research and industrial chemical processes.

Organic Synthesis Intermediate
Phenyl isocyanatoformate serves as a key intermediate in the synthesis of various organic compounds. It is employed in reactions requiring the introduction of carbamate or related functional groups.
Pharmaceutical Research
This compound can be utilised in the development of novel pharmaceutical agents. Its structure allows for modification and incorporation into potential drug candidates.
Material Science
The reactivity of phenyl isocyanatoformate may lend itself to applications in material science, such as in the synthesis of specialised polymers or functionalised materials.
| Molecular weight | 163.13 |
|---|---|
| Linear formula | OCNCO2C6H5 |
| Assay | 97% |
| Boiling point | 100 °C/15 mmHg(lit.) |
| Density | 1.233 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.516(lit.) |
| Storage temperature | −20°C |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335CO
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 filterCu: ≤50 mg/kg |
|---|---|
| Flash point | 99 °C / 210.2 °F |
| Transport (UN / ADR) | UN 2206 6.1/PG 3Zn: ≤50 mg/kg |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | XnFe: ≤50 mg/kg |
| Risk statements (R) | 20/21/22-36/37/38Ni: ≤50 mg/kg |
| Safety statements (S) | 23-26-36Pb: ≤50 mg/kg |
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 Phenyl isocyanatoformate used for?
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Phenyl isocyanatoformate is primarily used as a building block in organic synthesis and for research purposes in areas such as pharmaceutical development and material science.
What are the CAS number and formula for Phenyl isocyanatoformate?
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The CAS number for Phenyl isocyanatoformate is 5843-43-6, and its linear formula is OCNCO₂C₆H₅.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenyl isocyanatoformate with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Phenyl isocyanatoformate be handled safely?
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Phenyl isocyanatoformate is a Warning substance, classified with hazards H302, H312, H315, H319, H332, and H335. It is harmful if swallowed, in contact with skin, and if inhaled, and causes skin and serious eye irritation, and may cause respiratory irritation. Always use appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a suitable respirator, and ensure adequate ventilation.
Is Phenyl isocyanatoformate a controlled substance?
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The provided data does not indicate that Phenyl isocyanatoformate is a controlled substance.
How is Phenyl isocyanatoformate packed, shipped, and exported?
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Tech Serve Solutions expertly packs and ships chemicals globally. Specific packaging and shipping details for Phenyl isocyanatoformate will be provided upon request, adhering to all international transport regulations.
How can I request a quote or sample of Phenyl isocyanatoformate?
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To request a quote or sample of Phenyl isocyanatoformate, please contact our sales team through the website or by phone, providing your details and requirements.
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