Molecular Structure of N-Phenylmaleimide (CAS NO.941-69-5):

IUPAC Name: 1-Phenylpyrrole-2,5-dione
Molecular Formula: C₁₀H₇NO₂
Molecular Weight: 173.17 g/mol
Density: 1.329 g/cm³.
Melting Point: 85-87 °C
Boiling Point: 162-163 °C at 12 mm Hg(lit.)
Flash Point: 136.8 °C
Index of Refraction: 1.629
Molar Refractivity: 46.32 cm³
Molar Volume: 130.2 cm³
Surface Tension: 57.4 dyne/cm 
XLogP3: 1.1
H-Bond Acceptor: 2
Rotatable Bond Count: 1
Exact Mass: 173.047678
MonoIsotopic Mass: 173.047678
Topological Polar Surface Area: 37.4
Heavy Atom Count: 13 
Canonical SMILES: C1=CC=C(C=C1)N2C(=O)C=CC2=O
InChI: InChI=1S/C10H7NO2/c12-9-6-7-10(13)11(9)8-4-2-1-3-5-8/h1-7H
InChIKey: HIDBROSJWZYGSZ-UHFFFAOYSA-N
EINECS: 213-382-0
Product Categories: N-Substituted Maleimides;N-Substituted Maleimides, Succinimides & Phthalimides;Carbonyl Compounds;Cyclic Imides;Organic Building Blocks

 N-Phenylmaleimide (941-69-5) is used as sulfide cross-linking agent in caoutchouc and synthetic rubber. It is also used as heat-resistant modifying agent in the resins of ABS, PVC, and PMMA. N-Phenylmaleimide is used as the  intermediate of resins and is prepared for heat resistant polymers. N-Phenylmaleimide is widely used in coatings, binder, light-sensitive resins medicines, farm chemicals and so on.

Reported in EPA TSCA Inventory.

Hazard Codes: T, Xi
Risk Statements: 25-36/37/38-23/24/25 
R25 :Toxic if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
Safety Statements: 45-24/25-36/37/39-26 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S24/25:Avoid contact with skin and eyes. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: ON5950000
F: 10-21
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup: III
HS Code: 29251995
Poison by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of NO_x.

 N-Phenylmaleimide (CAS NO.941-69-5) is also named as 5-21-10-00009 (Beilstein Handbook Reference) ; AI3-01186 ; 
BRN 0125098 ; Maleanil ; Maleimidobenzene ; Maleinanil ; N-Fenylimid kyseliny maleinove ; N-Fenylimid kyseliny maleinove [Czech] ; NSC 8183 ; 1H-Pyrrole-2,5-dione, 1-phenyl- ; Maleimide, N-phenyl- . N-Phenylmaleimide (CAS NO.941-69-5) is yellow crystalline powder or needles. It is sparingly water soluble. N-Phenylmaleimide is an imide. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P₂O₅ or SOCl₂ generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx). Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Flash point data for N-Phenylmaleimide are not available. It is probably combustible.