801220-43-9

Basic information

• Product Name: 7-bromo-4'-(diethylamino)-3-hydroxyflavone
• Synonyms: 7-bromo-4'-(diethylamino)-3-hydroxyflavone
• CAS NO: 801220-43-9
• Molecular Weight: 388.261
• Mol File: 801220-43-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 7-bromo-4'-(diethylamino)-3-hydroxyflavone(CAS DataBase Reference)
• NIST Chemistry Reference: 7-bromo-4'-(diethylamino)-3-hydroxyflavone(801220-43-9)
• EPA Substance Registry System: 7-bromo-4'-(diethylamino)-3-hydroxyflavone(801220-43-9)

Safety Data

• Hazardous Substances Data: 801220-43-9(Hazardous Substances Data)

Upstream product

• 591-20-8 3-Bromophenol 
• 30186-18-6 4'-bromo-2'-hydroxyacetophenone 
• 120-21-8 4-Diethylaminobenzaldehyde 

Relevant articles and documents

7-(2-Methoxycarbonylvinyl)-3-hydroxychromones: New dyes with red shifted dual emission

The titled compounds, synthesized by Heck coupling reaction, demonstrate strongly red shifted absorption and dual emission as well as enhanced solvatochromism. 7-(2-Methoxycarbonylvinyl)-3-hydroxychromones have been synthesized using Heck coupling reaction from the corresponding 7-bromo-3-hydroxychromones. Introduction of the electron acceptor (2-methoxycarbonylvinyl) group at 7-position of 3-hydroxychromone results in a 30-40 nm red shift in absorption and >50 nm red shifts of both bands in emission. This derivatization allowed us to develop dyes with absorption maxima reaching 480 nm and dual emission in the red region of the spectrum. In comparison to the parent dyes, 7-acryl-3-hydroxychromones demonstrate significantly stronger solvatochromism. This is due to the acceptor group at 7-position, which increases the transfer character of the excited state of the dyes. The new dyes are highly prospective for the development of new fluorescent probes in biological research.