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113231-63-3

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113231-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113231-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,3 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 113231-63:
(8*1)+(7*1)+(6*3)+(5*2)+(4*3)+(3*1)+(2*6)+(1*3)=73
73 % 10 = 3
So 113231-63-3 is a valid CAS Registry Number.

113231-63-3Relevant articles and documents

Snythesis of 3-Styrylcoumarins from Coumarin-3-acetic Acids and 3-Phenacylcoumarins

Chodankar, N. K.,Joshi, S. D.,Sequeria, S.,Seshadri, S.

, p. 427 - 430 (2007/10/02)

The hitherto unknown 3-styrylcoumarin system has been synthesised by two routes.In the first approach, coumarin-3-acetic acids are reacted with aromatic aldehydes to yield directly the 3-styrylcoumarins.The synthesis is limited by the difficulty in obtaining coumarin-3-acetic acids in good yields.The second approach utilises 3-phenacylcoumarins which are reduced to the carbinols and subsequently dehydrated to the corresponding 3-styrylcoumarins.The fluorescence of these compounds and their application to polyester fibre have been studied.

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