55669-61-9

Basic information

• Product Name: 2-(1-oxo-1H-phenalen-9-yl)benzaldehyde
• Synonyms: Benzaldehyde, 2-(1-oxo-1H-phenalen-9-yl)-
• CAS NO: 55669-61-9
• Molecular Formula: C₂₀H₁₂O₂
• Molecular Weight: 284.3081
• Mol File: 55669-61-9.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 546.3°C at 760 mmHg
• Flash Point: 200.4°C
• Density: 1.295g/cm³
• Vapor Pressure: 5.44E-12mmHg at 25°C
• Refractive Index: 1.727
• CAS DataBase Reference: 2-(1-oxo-1H-phenalen-9-yl)benzaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(1-oxo-1H-phenalen-9-yl)benzaldehyde(55669-61-9)
• EPA Substance Registry System: 2-(1-oxo-1H-phenalen-9-yl)benzaldehyde(55669-61-9)

Safety Data

• Hazardous Substances Data: 55669-61-9(Hazardous Substances Data)

Upstream product

• 50-32-8 benzopyrene 

Relevant articles and documents

Controlled oxidations of benzopyrene

The four diones derived from benzopyrene oxidation have been characterized by high-field nuclear magnetic resonance techniques including 2-D COSY and selective nuclear Overhauser enhancement.All proton chemical shifts for these four quinones have been unequivocally assigned.The direct photoxidation of benzopyrene gives a product distribution very similar to the TPP photosensitized oxygenation, suggesting singlet oxygen is involved in the former.A major product, which was characterized as the 6-seco derivative 6 and not previously reported, was detected in the singlet oxygen reaction.The presence of this product suggests a possible mechanism for quinone formation in the singlet oxygen reaction.One-electron oxidations of benzopyrene were carried out using tris(p-bromophenyl)aminium hexachloroantimonate and quenching of the radical cation with superoxide or water.The product distribution in this case was quite different from that obtained in the direct photooxidation.