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56263-49-1

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56263-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56263-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,6 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 56263-49:
(7*5)+(6*6)+(5*2)+(4*6)+(3*3)+(2*4)+(1*9)=131
131 % 10 = 1
So 56263-49-1 is a valid CAS Registry Number.

56263-49-1Relevant articles and documents

Synthesis and characterization of 'picnic-basket' porphyrins with a substituent in the interior of the pocket

Michida,Kyuhara,Nishiyama,Yoshimi,Fitzgerald,Sayo

, p. 3157 - 3162 (2007/10/02)

'Picnic-basket' porphyrins of a new type, that have a substituent in the interior of the pocket, were synthesized to study stabilization of the bound oxygen in hemoprotein models. Though these Co(II) porphyrins have enormous equilibrium constants for the formation of base adducts, hydrogen-bonding interaction with coordinated dioxygen is not as effective for stabilization of the metal-dioxygen bond as we had expected. The results suggest that doming of the porphyrin plane plays an important role in the binding of dioxygen.

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