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437653-43-5

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437653-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 437653-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,7,6,5 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 437653-43:
(8*4)+(7*3)+(6*7)+(5*6)+(4*5)+(3*3)+(2*4)+(1*3)=165
165 % 10 = 5
So 437653-43-5 is a valid CAS Registry Number.

437653-43-5Downstream Products

437653-43-5Relevant articles and documents

Syntheses and optical and electrochemical properties of porphyrin dimers linked by metal ions

Richeter, Sebastien,Jeandon, Christophe,Gisselbrecht, Jean-Paul,Ruppert, Romain,Callot, Henry J.

, p. 6168 - 6179 (2007/10/03)

The preparation, isolation, and characterization of several new peripherally functionalized monomeric porphyrins and metalloporphyrins and of porphyrin dimers are described. These dimers are obtained by linking with metal ions two monomeric porphyrins bearing at their periphery an enaminoketone chelate fully conjugated with the aromatic ring. Porphyrin dimers linked by metal ions display large interactions in the ground state as evidenced by their electronic spectra and their electrochemical behavior. Compared to the monomeric analogue, these dimers show absorption spectra with intensified red-shifted Q-bands and their first oxidation potentials are substantially lowered and split into two distinct redox steps.

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