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87973-43-1

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87973-43-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87973-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,7 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 87973-43:
(7*8)+(6*7)+(5*9)+(4*7)+(3*3)+(2*4)+(1*3)=191
191 % 10 = 1
So 87973-43-1 is a valid CAS Registry Number.

87973-43-1Downstream Products

87973-43-1Relevant articles and documents

STRUCTURE OF THE BORATE COMPLEXES OF α-AMINO AND α-HYDROXY-9,10-ANTHRAQUINONES AND THEIR REACTION WITH AMINES

Gorelik, M. V.,Shapet'ko, N. N.,Arinich, L. V.,Tsurkan, A. I.,Kukushkina, M. L.

, p. 547 - 556 (2007/10/02)

It was shown by 13C NMR that a redistribution of the bonds with partial localization of the 1,5- and 1,10-anthraquinonoid structures occurs during the transition from 1,5-diamino(dihydroxy)- and 1-amino(hydroxy)-9,10-anthraquinones respectively to their borate complexes.For this reason the boroacetates and fluoroborates of 1,5-dihydroxyanthraquinonones, 1-aminoanthraquinones, their N-alkyl and N-aryl derivatives, and 1,5-dihydroxyanthraquinone are capable of entering into amination under the influence of aromatic amines with substitution of the hydrogen atom at position 4 under mild conditions with the participation of atmospheric oxygen as oxidizing agent

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