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72260-61-8

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72260-61-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72260-61-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,2,6 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72260-61:
(7*7)+(6*2)+(5*2)+(4*6)+(3*0)+(2*6)+(1*1)=108
108 % 10 = 8
So 72260-61-8 is a valid CAS Registry Number.

72260-61-8Relevant articles and documents

Oxidation of Chromium(III) Porphyrins to their ?-Radical Cations or to Oxochromium (IV) Porphyrins

Guldi, Dirk M.,Neta, Pedatsur,Hambright, Peter

, p. 2013 - 2020 (1992)

One-electron oxidation of several chromium(III) porphyrins has been studied by steady-state and pulse radiolysis techniques under different conditions.Two types of products are observed: those exhibiting intense broad absorptions at λ >/= 600 nm, ascribed

E.S.R. Evidence for Chromium(V) Porphyrinates

Groves, John T.,Haushalter, Robert C.

, p. 1165 - 1166 (2007/10/02)

The oxidation of chloro-5,10,15,20-tetraphenylporphyrinatochromium(III) with iodosylbenzene proceeds with oxygen transfer to chromium and two-electron oxidation of the metal to give a chromium(V) porphyrinate complex; the e.s.r. spectra of this complex, its 17O-derivative, and its t-butylamine adduct show strong electron hyperfine interactions with the metal nucleus and the metal ligands and indicate a metal-centred radical as expected for chromium(V).

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