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225797-86-4

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225797-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 225797-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,7,9 and 7 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 225797-86:
(8*2)+(7*2)+(6*5)+(5*7)+(4*9)+(3*7)+(2*8)+(1*6)=174
174 % 10 = 4
So 225797-86-4 is a valid CAS Registry Number.

225797-86-4Relevant articles and documents

A set of homologous hetarylenediyne macrocycles by oxidative acetylene-acetylene coupling

Opris, Dorina M.,Ossenbach, Alexander,Lentz, Dieter,Schlueter, A. Dieter

scheme or table, p. 2091 - 2093 (2009/06/18)

(Chemical Equation Presented) The synthesis of a set of bipyridine-containing macrocycles by oxidative acetylene-acetylene dimerization is described. The cycles are separated by preparative GPC, and the smallest homologue is analyzed by single-crystal X-ray diffraction, which shows a layered structure with channels that are partially filled with parts of the flexible chains of adjacent macrocycles. The cyclic trimer has a D3h symmetry and is a possible candidate for the formation of metal organic supramolecular assemblies on surfaces.

Shape-persistent macrocycles with bipyridine units: Progress in accessibility and widening of applicability

Opris, Donna M.,Franke, Peter,Schlueter, A. Dieter

, p. 822 - 837 (2007/10/03)

Several new symmetrical and nonsymmetrical bipyridine-containing building blocks for shape-persistent macrocycles were developed, whereby much emphasis was placed on especially efficient procedures. The building blocks were used for the synthesis of sever

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