144900-79-8

Basic information

• Product Name: N-(4-methyl-2-oxo-2H-chromen-7-yl)formamide
• Synonyms: N-(4-methyl-2-oxo-2H-chromen-7-yl)formamide
• CAS NO: 144900-79-8
• Molecular Weight: 203.197
• Mol File: 144900-79-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: N-(4-methyl-2-oxo-2H-chromen-7-yl)formamide(CAS DataBase Reference)
• NIST Chemistry Reference: N-(4-methyl-2-oxo-2H-chromen-7-yl)formamide(144900-79-8)
• EPA Substance Registry System: N-(4-methyl-2-oxo-2H-chromen-7-yl)formamide(144900-79-8)

Safety Data

• Hazardous Substances Data: 144900-79-8(Hazardous Substances Data)

Upstream product

• 91-44-1 7-diethylamino-4-methylcoumarin 

Relevant articles and documents

FORMATION OF OLIGOMERS IN THE IRRADIATION OF 7-DIETHYLAMINO-4-METHYLCOUMARIN IN ETHANOL

In the continuous irradiation of alcoholic solutions of 7-alkylaminocoumarins, oligomers are formed which absorb radiation in the luminescent region of dyes and therefore interfere with the generation of a laser medium.The average molecular weight of the oligomers corresponds with tri- and tetramers.The fractions with higher molecular weights absorb the generated radiation more effectively.The formation of oligomers is observed in oxygen-containing solutions and increases with increase in the dye concentration and degree of conversion.The most likely route for oligomerization seems to be the condensation of the products of the photooxidation of coumarins through the alkylamino group (of amines and amides), and also of acetaldehyde and formaldehyde in a way similar to the formation of amino-aldehyde resins.