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144342-87-0

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144342-87-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144342-87-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,3,4 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 144342-87:
(8*1)+(7*4)+(6*4)+(5*3)+(4*4)+(3*2)+(2*8)+(1*7)=120
120 % 10 = 0
So 144342-87-0 is a valid CAS Registry Number.

144342-87-0Relevant articles and documents

New 2,2'-Bipyridine Derivatives and Their Luminescence Properties with Europium(III) and Terbium(III) Ions

Mukkala, Veli-Matti,Kankare, Jouko J.

, p. 1578 - 1592 (2007/10/02)

Twenty differently substituted 2,2',2",2"'-III and TbIII ions.The relative luminescence yields, excitation maxima, and emission decay constants were determined for the corresponding EuIII and TbIII chelates.The substituents at the bipyridine moiety had a significant effect on the luminescence properties: the best relative luminescence yields R were obtained for ligands with electron-donating substituents (e.g.Me, Ph), electron-withdrawing substituents (e.g.NO2, COOH) had a reverse effect.However, no clear correlation between the relative luminescence yields and the substituent parameters was found.

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