IUPAC Name: 3-Methyl-1-[[3-[(3-methyl-2,5-dioxopyrrol-1-yl)methyl]phenyl]methyl]pyrrole-2,5-dione 
Following is the structure of 1H-Pyrrole-2,5-dione,1,1'-[1,3-phenylenebis(methylene)]bis[3-methyl- (CAS NO.63223-86-9):
                        
Empirical Formula: C₁₈H₁₆N₂O₄
Molecular Weight: 324.3306 
EINECS: 412-570-1
Index of Refraction: 1.645
Molar Refractivity: 85.245 cm³
Molar Volume: 235.272 cm³
Polarizability: 33.794 10^-24cm³
Surface Tension: 63.737 dyne/cm
Density: 1.379 g/cm³
Flash Point: 250.623 °C
Enthalpy of Vaporization: 80.9 kJ/mol
Boiling Point: 533.097 °C at 760 mmHg
Product Categories of 1H-Pyrrole-2,5-dione,1,1'-[1,3-phenylenebis(methylene)]bis[3-methyl- (CAS NO.63223-86-9): Rubber & Plastic Auxiliary Agent
Canonical SMILES: CC1=CC(=O)N(C1=O)CC2=CC(=CC=C2)CN3C(=O)C=C(C3=O)C
InChI: InChI=1S/C18H16N2O4/c1-11-6-15(21)19(17(11)23)9-13-4-3-5-14(8-13)10-20-16(22)7-12(2)18(20)24/h3-8H,9-10H2,1-2H3
InChIKey: MIIBUHIQXLFJFP-UHFFFAOYSA-N

Hazard Codes: Xn,N
Risk Statements: 41-43-48/22-50/53 
R41:Risk of serious damage to the eyes. 
R43:May cause sensitization by skin contact. 
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 26-36/37/39-60-61 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: 3077
HazardClass: 9
PackingGroup: III

 1,3-Bis(citraconimidomethyl)benzene , its cas register number 63223-86-9. It also can be called 1,3-Bis(citraconimidomethyl)benzene ; 1,3-Bis(citraconimidomethyl)benzol ; and 1,3-Bis((3-methyl-2,5-dioxopyrrol-1-yl)methyl)benzol . Its classification code are TSCA Flag P [A commenced PMN (Premanufacture Notice) substance] and TSCA Flag S [Substance is identified in a proposed or final SNUR (Significant New Use Rule) under TSCA].