N-Phenylmaleimide
N-Phenylmaleimide (CAS: 941-69-5), with the molecular formula C10H7NO2 and a molecular weight of 173.17 g/mol, is a valuable organic building block. This cyclic imide is recognised for its utility in chemical synthesis, particularly in reactions involving carbonyl compounds. It serves as a key intermediate in the creation of various organic molecules, contributing to advancements in materials science and organic chemistry research.

Polymer Synthesis
N-Phenylmaleimide can be incorporated into polymer chains through copolymerization reactions, modifying material properties such as thermal stability and mechanical strength. Its reactive double bond allows for versatile polymer architectures.
Organic Synthesis Intermediate
As a functionalised cyclic imide, it acts as a precursor for a range of complex organic molecules. Its structure lends itself to further chemical modifications for creating specialised compounds.
Materials Science
The compound finds use in the development of advanced materials due to its ability to participate in reactions that form stable structures. Research into functional polymers often utilises N-Phenylmaleimide.
| Molecular weight | 173.17 |
|---|---|
| Empirical formula | C10H7NO2 |
| Assay | 97% |
| Boiling point | 162-163 °C/12 mmHg(lit.) |
| Melting point | 85-87 °C(lit.) |



Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Flash point | 152 °C / 305.6 °F |
| Transport (UN / ADR) | UN 2811 6.1/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 25-38-41-43-50 |
| Safety statements (S) | 26-36/37-39-45-61 |
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 N-Phenylmaleimide primarily used for?
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N-Phenylmaleimide is primarily used as a building block in organic synthesis and in the development of polymers and advanced materials. It is a cyclic imide that functions as an intermediate in chemical synthesis.
What are the CAS number and molecular formula for N-Phenylmaleimide?
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The CAS number for N-Phenylmaleimide is 941-69-5, and its molecular formula is C10H7NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N-Phenylmaleimide with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should N-Phenylmaleimide be handled safely?
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N-Phenylmaleimide is classified as a Danger substance. It is harmful if swallowed (H301), causes skin irritation (H315), may cause an allergic skin reaction (H317), causes serious eye damage (H318), and is very toxic to aquatic life (H400). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and P2 respirator cartridges, is essential. Handle in a well-ventilated area and avoid release to the environment.
How is N-Phenylmaleimide shipped and exported?
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N-Phenylmaleimide is shipped as UN 2811, Class 6.1, Packing Group 3, with hazard codes T,N. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for N-Phenylmaleimide?
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Please contact our sales team to request a sample or a quotation for N-Phenylmaleimide.
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