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3-(p-tolyl)-4-methyl-7-diethylamino-2H-benzopyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

29639-43-8

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29639-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29639-43-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,6,3 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 29639-43:
(7*2)+(6*9)+(5*6)+(4*3)+(3*9)+(2*4)+(1*3)=148
148 % 10 = 8
So 29639-43-8 is a valid CAS Registry Number.

29639-43-8Downstream Products

29639-43-8Relevant academic research and scientific papers

PHOTOCHEMICAL REACTIONS OF 7-AMINOCOUMARINS. 8. REACTION OF 3-IODO-4-METHYL-7-DIETHYLAMINOCOUMARIN WITH MONOSUBSTITUTED BENZENES

Gordeeva, N. A.,Kirpichenok, M. A.,Gernyshev, A. I.,Grandberg, I.I.,Akimova, N. P.

, p. 976 - 980 (2007/10/02)

A number of 3-aryl-4-methyl-7-diethylaminocoumarins were obtained as a result of the photolysis of 3-iodo-4-methyl-7-diethylaminocoumarin in the presence of benzene, chlorobenzene, fluorobenzene, benzonitrile, toluene, and diphenyl ether.On the basis of an analysis of the PMR spectra it was established that photosubstitution leads to o- and p-isomeric products.The mechanism of the reaction was studied.

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