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833-38-5

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833-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 833-38-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 833-38:
(5*8)+(4*3)+(3*3)+(2*3)+(1*8)=75
75 % 10 = 5
So 833-38-5 is a valid CAS Registry Number.

833-38-5Relevant articles and documents

Diels-Alder/thiol-olefin co-oxygenation approach to antimalarials incorporating the 2,3-dioxabicyclo[3.3.1]nonane pharmacophore

O'Neill, Paul M.,Verissimo, Edite,Ward, Stephen A.,Davies, Jill,Korshin, Edward E.,Araujo, Nuna,Pugh, Matthew D.,Cristiano, M. Lurdes S.,Stocks, Paul A.,Bachi, Mario D.

, p. 2991 - 2995 (2008/09/20)

A Diels-Alder/thiol-olefin co-oxygenation approach to the synthesis of novel bicyclic endoperoxides 17a-22b is reported. Some of these endoperoxides (e.g., 17b, 19b, 22a and 22b) have potent nanomolar in vitro antimalarial activity equivalent to that of the synthetic antimalarial agent arteflene. Iron(II)-mediated degradation of sulfone-endoperoxide 19b and spin-trapping with TEMPO provide a spin-trapped adduct 25 indicative of the formation of a secondary carbon centered radical species 24. Reactive C-radical intermediates of this type may be involved in the expression of the antimalarial effect of these bicyclic endoperoxides.

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