34085-07-9

Basic information

• Product Name: 1H-Pyrrole-2,5-dione, 3,4-diethyl-
• Synonyms: diethylmaleimide;1H-Pyrrole-2,5-dione,3,4-diethyl;3,4-diethyl-2,5-dihydro-1H-pyrrole-2,5-dione;3,4-diethyl-pyrrole-2,5-dione;2,3-diethylMi;3,4-diethyl-maleimide;3,4-Diethyl-1H-pyrrole-2,5-dione;3,4-diethylmaleinimide
• CAS NO: 34085-07-9
• Molecular Formula: C8H11NO2
• Molecular Weight: 153.17800
• Mol File: 34085-07-9.mol
• Article Data: 2

Chemical Properties

• Melting Point: 68 °C
• Boiling Point: 268.6±9.0 °C(Predicted)
• Density: 1.077±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 1H-Pyrrole-2,5-dione, 3,4-diethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrrole-2,5-dione, 3,4-diethyl-(34085-07-9)
• EPA Substance Registry System: 1H-Pyrrole-2,5-dione, 3,4-diethyl-(34085-07-9)

Safety Data

• Hazardous Substances Data: 34085-07-9(Hazardous Substances Data)

Upstream product

• 14287-39-9 2,3,7,8,12,13,17,18-octaethyloxophlorin 
• 63720-62-7 3,4-diethyl-5-(4-ethyl-3,5-dimethylpyrrolyl-2-methylidene)-3-pyrrolin-2-one 

Relevant articles and documents

meso-Reactivity of Porphyrins and Related Compounds. Part 9. Photo-oxygenation of Octaethyloxophlorin

The photo-oxygenation of octaethyloxophlorin has been investigated under basic and under neutral conditions.In both cases unstable intermediate stages are observed spectroscopically.In methanolic sodium methoxide the solution becomes bleached and tetraethyl(methanol)propentdyopent is a significant product.In neutral solutions (e.g. benzene-methanol) the major products are octaethyl-5,15-dioxo-5,15-dihydroporphyrin (4) and octaethyl-19-formyl-21H,24H-bilin-1,15-dione (7), the formation of octaethyl-21H,24H-bilin-1,19-dione (6) being a minor pathway.A mechanistic rationalisation is proposed.