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495402-49-8

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495402-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 495402-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,5,4,0 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 495402-49:
(8*4)+(7*9)+(6*5)+(5*4)+(4*0)+(3*2)+(2*4)+(1*9)=168
168 % 10 = 8
So 495402-49-8 is a valid CAS Registry Number.

495402-49-8Relevant articles and documents

Synthesis of azobenzene substituted tripod-shaped bi(p-phenylene)s. Adsorption on gold and CdS quantum-dots surfaces

Hierrezuelo, Jesús,Rico, Rodrigo,Valpuesta, María,Díaz, Amelia,López-Romero, J. Manuel,Rutkis, Martins,Kreigberga, Jana,Kampars, Valdis,Algarra, Manuel

, p. 3465 - 3474 (2013/04/24)

We report here the synthesis of several tripod-shaped oligo(p-phenylene)s with legs composed of two phenylene units. Each leg is end-capped with a thioacetate group for adhesion to metallic surfaces. An azobenzene chromophore group is present on the functional arm of the tripod. The key step in the synthesis is the Pd-catalyzed Suzuki cross-coupling reaction of the silicon derivative core molecule with substituted phenyl moieties and azobenzene derivatives. Gold surfaces prepared by thermal evaporation and CdS quantum-dots surfaces were covered by the tripod-shaped molecules. Modified surfaces were characterized by atomic force microscopy (AFM), fluorescence, and Kelvin Probe analyses.

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