70460-60-5

Basic information

• Product Name: 2-phenyl-2H-chromene-3,4-dione
• Synonyms: 2-Phenyl-2H-chromene-3,4-dione; 3,4-Flavandione
• CAS NO: 70460-60-5
• Molecular Formula: C₁₅H₁₀O₃
• Molecular Weight: 238.2381
• Mol File: 70460-60-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 407.9°C at 760 mmHg
• Flash Point: 183.6°C
• Density: 1.291g/cm³
• Vapor Pressure: 7.29E-07mmHg at 25°C
• Refractive Index: 1.619
• CAS DataBase Reference: 2-phenyl-2H-chromene-3,4-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 2-phenyl-2H-chromene-3,4-dione(70460-60-5)
• EPA Substance Registry System: 2-phenyl-2H-chromene-3,4-dione(70460-60-5)

Safety Data

• Hazardous Substances Data: 70460-60-5(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 644-78-0 2-hydroxychalcone 
• 1469-94-9 1-(2-hydroxyphenyl)-3-phenyl-1,3-propanedione 
• 107-32-4 Peroxyformic acid 
• 487-26-3 Flavanone 
• 6928-56-9 3-aminoflavone 
• 1621-55-2 Flavanon-3-ol 
• 693255-10-6 2,3-dimethoxy-2-phenyl-chroman-4-one 
• 53074-73-0 2-(2-chloroacetyl)phenol 
• 100-52-7 benzaldehyde 
• 7664-93-9 sulfuric acid 
• 577-85-5 3-hydroxyflavone 

Downstream Products

• 7578-68-9 3-acetoxyflavonol 
• 70188-30-6 3-mesyloxyflavone 
• 7245-02-5 3-methoxyflavone 
• 118927-59-6 2-phenyl-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside 
• 22812-29-9 2-phenyl-3-benzoyloxy-4-oxo-4H-1-benzopyran 
• 109644-17-9 2-phenyl-3-sulfooxy-chromen-4-one 

Relevant articles and documents

Flavonol dyes with different substituents in photopolymerization

To further expand the applications of flavonol dyes (3HFs) in photopolymerization, six flavonol dyes with different substituents were prepared by using the Algar–Flynn–Oyamada method. The steady-state photolysis and fluorescence quenching of 3HFs under the 385 nm LED light source showed that the proton transfer reaction preceded the charge transfer reaction between 3HFs and triethanolamine (TEOA) or iodonium salts (ONI), and groups with different electron properties could affect the photochemistry of 3HFs. The influence of substituents on the free radical polymerization efficiencies of 3HFs/TEOA and 3HFs/ONI was evaluated. Results showed that charge transfer occurred in the oxidation or reduction processes between 3HFs and TEOA or ONI. The possible mechanism was speculated, and the thermal feasibility of charge transfer between 3HFs and TEOA or ONI was calculated on the basis of the free energy changes of photoinduced electron transfer.